Home / 42,968.38-64,452.57-13,388.61

Finding the Fourth Proportional to 42,968.38, 64,452.57 and 13,388.61

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Solution

The fourth proportional to 42,968.38, 64,452.57 and 13,388.61 is: 20,082.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,968.38 : 64,452.57 = 13,388.61 : x
  2. Step 2: Convert to fraction form
    42,968.38/64,452.57 = 13,388.61/x
  3. Step 3: Cross multiply
    42,968.38x = 64,452.57 × 13,388.61
  4. Step 4: Simplify right side
    42,968.38x = 862,930,323.23
  5. Step 5: Solve for x
    x = 862,930,323.23/42,968.38
  6. Step 6: Final answer
    x = 20,082.92

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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.