Home / 30,436.14-41,998.76-20,884.26

Finding the Fourth Proportional to 30,436.14, 41,998.76 and 20,884.26

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Solution

The fourth proportional to 30,436.14, 41,998.76 and 20,884.26 is: 28,818.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,436.14 : 41,998.76 = 20,884.26 : x
  2. Step 2: Convert to fraction form
    30,436.14/41,998.76 = 20,884.26/x
  3. Step 3: Cross multiply
    30,436.14x = 41,998.76 × 20,884.26
  4. Step 4: Simplify right side
    30,436.14x = 877,113,023.52
  5. Step 5: Solve for x
    x = 877,113,023.52/30,436.14
  6. Step 6: Final answer
    x = 28,818.14

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Half scale
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Double scale
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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.