Home / 42,661.38-64,000.17-19,287.75

Finding the Fourth Proportional to 42,661.38, 64,000.17 and 19,287.75

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Solution

The fourth proportional to 42,661.38, 64,000.17 and 19,287.75 is: 28,935.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,661.38 : 64,000.17 = 19,287.75 : x
  2. Step 2: Convert to fraction form
    42,661.38/64,000.17 = 19,287.75/x
  3. Step 3: Cross multiply
    42,661.38x = 64,000.17 × 19,287.75
  4. Step 4: Simplify right side
    42,661.38x = 1,234,419,278.92
  5. Step 5: Solve for x
    x = 1,234,419,278.92/42,661.38
  6. Step 6: Final answer
    x = 28,935.29

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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.