Home / 45,013.83-67,517.51-19,715.91

Finding the Fourth Proportional to 45,013.83, 67,517.51 and 19,715.91

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Solution

The fourth proportional to 45,013.83, 67,517.51 and 19,715.91 is: 29,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,013.83 : 67,517.51 = 19,715.91 : x
  2. Step 2: Convert to fraction form
    45,013.83/67,517.51 = 19,715.91/x
  3. Step 3: Cross multiply
    45,013.83x = 67,517.51 × 19,715.91
  4. Step 4: Simplify right side
    45,013.83x = 1,331,169,052.00
  5. Step 5: Solve for x
    x = 1,331,169,052.00/45,013.83
  6. Step 6: Final answer
    x = 29,572.45

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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.