Home / 42,553.24-63,869.30-21,507.95

Finding the Fourth Proportional to 42,553.24, 63,869.30 and 21,507.95

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Solution

The fourth proportional to 42,553.24, 63,869.30 and 21,507.95 is: 32,281.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,553.24 : 63,869.30 = 21,507.95 : x
  2. Step 2: Convert to fraction form
    42,553.24/63,869.30 = 21,507.95/x
  3. Step 3: Cross multiply
    42,553.24x = 63,869.30 × 21,507.95
  4. Step 4: Simplify right side
    42,553.24x = 1,373,697,544.95
  5. Step 5: Solve for x
    x = 1,373,697,544.95/42,553.24
  6. Step 6: Final answer
    x = 32,281.86

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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.