Home / 38,142.72-57,140.28-21,452.04

Finding the Fourth Proportional to 38,142.72, 57,140.28 and 21,452.04

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Solution

The fourth proportional to 38,142.72, 57,140.28 and 21,452.04 is: 32,136.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,142.72 : 57,140.28 = 21,452.04 : x
  2. Step 2: Convert to fraction form
    38,142.72/57,140.28 = 21,452.04/x
  3. Step 3: Cross multiply
    38,142.72x = 57,140.28 × 21,452.04
  4. Step 4: Simplify right side
    38,142.72x = 1,225,775,572.17
  5. Step 5: Solve for x
    x = 1,225,775,572.17/38,142.72
  6. Step 6: Final answer
    x = 32,136.55

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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.