Home / 20,615.38-28,452.28-13,062.42

Finding the Fourth Proportional to 20,615.38, 28,452.28 and 13,062.42

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Solution

The fourth proportional to 20,615.38, 28,452.28 and 13,062.42 is: 18,028.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,615.38 : 28,452.28 = 13,062.42 : x
  2. Step 2: Convert to fraction form
    20,615.38/28,452.28 = 13,062.42/x
  3. Step 3: Cross multiply
    20,615.38x = 28,452.28 × 13,062.42
  4. Step 4: Simplify right side
    20,615.38x = 371,655,565.44
  5. Step 5: Solve for x
    x = 371,655,565.44/20,615.38
  6. Step 6: Final answer
    x = 18,028.07

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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.