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Finding the Fourth Proportional to 22,928.04, 31,646.32 and 13,980.47

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Solution

The fourth proportional to 22,928.04, 31,646.32 and 13,980.47 is: 19,296.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,928.04 : 31,646.32 = 13,980.47 : x
  2. Step 2: Convert to fraction form
    22,928.04/31,646.32 = 13,980.47/x
  3. Step 3: Cross multiply
    22,928.04x = 31,646.32 × 13,980.47
  4. Step 4: Simplify right side
    22,928.04x = 442,430,471.54
  5. Step 5: Solve for x
    x = 442,430,471.54/22,928.04
  6. Step 6: Final answer
    x = 19,296.48

Related Problems

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Half scale
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Double scale
Find fourth proportional to 22,929.04, 31,647.70 and 13,981.47
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.