Home / 28,209.31-42,272.39-15,712.13

Finding the Fourth Proportional to 28,209.31, 42,272.39 and 15,712.13

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Solution

The fourth proportional to 28,209.31, 42,272.39 and 15,712.13 is: 23,545.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209.31 : 42,272.39 = 15,712.13 : x
  2. Step 2: Convert to fraction form
    28,209.31/42,272.39 = 15,712.13/x
  3. Step 3: Cross multiply
    28,209.31x = 42,272.39 × 15,712.13
  4. Step 4: Simplify right side
    28,209.31x = 664,189,208.53
  5. Step 5: Solve for x
    x = 664,189,208.53/28,209.31
  6. Step 6: Final answer
    x = 23,545.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.