Home / 42,585.30-63,890.28-17,620.74

Finding the Fourth Proportional to 42,585.30, 63,890.28 and 17,620.74

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Solution

The fourth proportional to 42,585.30, 63,890.28 and 17,620.74 is: 26,436.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,585.30 : 63,890.28 = 17,620.74 : x
  2. Step 2: Convert to fraction form
    42,585.30/63,890.28 = 17,620.74/x
  3. Step 3: Cross multiply
    42,585.30x = 63,890.28 × 17,620.74
  4. Step 4: Simplify right side
    42,585.30x = 1,125,794,012.41
  5. Step 5: Solve for x
    x = 1,125,794,012.41/42,585.30
  6. Step 6: Final answer
    x = 26,436.21

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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.