Home / 28,572.38-39,431.51-15,997.02

Finding the Fourth Proportional to 28,572.38, 39,431.51 and 15,997.02

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Solution

The fourth proportional to 28,572.38, 39,431.51 and 15,997.02 is: 22,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,572.38 : 39,431.51 = 15,997.02 : x
  2. Step 2: Convert to fraction form
    28,572.38/39,431.51 = 15,997.02/x
  3. Step 3: Cross multiply
    28,572.38x = 39,431.51 × 15,997.02
  4. Step 4: Simplify right side
    28,572.38x = 630,786,654.10
  5. Step 5: Solve for x
    x = 630,786,654.10/28,572.38
  6. Step 6: Final answer
    x = 22,076.80

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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.