Home / 42,967.38-64,451.07-13,387.61

Finding the Fourth Proportional to 42,967.38, 64,451.07 and 13,387.61

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Solution

The fourth proportional to 42,967.38, 64,451.07 and 13,387.61 is: 20,081.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,967.38 : 64,451.07 = 13,387.61 : x
  2. Step 2: Convert to fraction form
    42,967.38/64,451.07 = 13,387.61/x
  3. Step 3: Cross multiply
    42,967.38x = 64,451.07 × 13,387.61
  4. Step 4: Simplify right side
    42,967.38x = 862,845,466.99
  5. Step 5: Solve for x
    x = 862,845,466.99/42,967.38
  6. Step 6: Final answer
    x = 20,081.41

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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.