Home / 28,331.04-39,096.28-15,755.52

Finding the Fourth Proportional to 28,331.04, 39,096.28 and 15,755.52

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Solution

The fourth proportional to 28,331.04, 39,096.28 and 15,755.52 is: 21,742.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331.04 : 39,096.28 = 15,755.52 : x
  2. Step 2: Convert to fraction form
    28,331.04/39,096.28 = 15,755.52/x
  3. Step 3: Cross multiply
    28,331.04x = 39,096.28 × 15,755.52
  4. Step 4: Simplify right side
    28,331.04x = 615,982,221.47
  5. Step 5: Solve for x
    x = 615,982,221.47/28,331.04
  6. Step 6: Final answer
    x = 21,742.31

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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.