Home / 28,542.15-39,387.74-15,966.90

Finding the Fourth Proportional to 28,542.15, 39,387.74 and 15,966.90

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Solution

The fourth proportional to 28,542.15, 39,387.74 and 15,966.90 is: 22,034.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,542.15 : 39,387.74 = 15,966.90 : x
  2. Step 2: Convert to fraction form
    28,542.15/39,387.74 = 15,966.90/x
  3. Step 3: Cross multiply
    28,542.15x = 39,387.74 × 15,966.90
  4. Step 4: Simplify right side
    28,542.15x = 628,900,025.97
  5. Step 5: Solve for x
    x = 628,900,025.97/28,542.15
  6. Step 6: Final answer
    x = 22,034.08

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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.