Home / 15,928.66-21,971.37-10,270.66

Finding the Fourth Proportional to 15,928.66, 21,971.37 and 10,270.66

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Solution

The fourth proportional to 15,928.66, 21,971.37 and 10,270.66 is: 14,166.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,928.66 : 21,971.37 = 10,270.66 : x
  2. Step 2: Convert to fraction form
    15,928.66/21,971.37 = 10,270.66/x
  3. Step 3: Cross multiply
    15,928.66x = 21,971.37 × 10,270.66
  4. Step 4: Simplify right side
    15,928.66x = 225,660,471.00
  5. Step 5: Solve for x
    x = 225,660,471.00/15,928.66
  6. Step 6: Final answer
    x = 14,166.95

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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.