Home / 42,538.59-63,817.11-12,955.65

Finding the Fourth Proportional to 42,538.59, 63,817.11 and 12,955.65

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Solution

The fourth proportional to 42,538.59, 63,817.11 and 12,955.65 is: 19,436.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,538.59 : 63,817.11 = 12,955.65 : x
  2. Step 2: Convert to fraction form
    42,538.59/63,817.11 = 12,955.65/x
  3. Step 3: Cross multiply
    42,538.59x = 63,817.11 × 12,955.65
  4. Step 4: Simplify right side
    42,538.59x = 826,792,141.17
  5. Step 5: Solve for x
    x = 826,792,141.17/42,538.59
  6. Step 6: Final answer
    x = 19,436.28

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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.