Home / 42,008.09-63,013.90-19,539.85

Finding the Fourth Proportional to 42,008.09, 63,013.90 and 19,539.85

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Solution

The fourth proportional to 42,008.09, 63,013.90 and 19,539.85 is: 29,310.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,008.09 : 63,013.90 = 19,539.85 : x
  2. Step 2: Convert to fraction form
    42,008.09/63,013.90 = 19,539.85/x
  3. Step 3: Cross multiply
    42,008.09x = 63,013.90 × 19,539.85
  4. Step 4: Simplify right side
    42,008.09x = 1,231,282,153.92
  5. Step 5: Solve for x
    x = 1,231,282,153.92/42,008.09
  6. Step 6: Final answer
    x = 29,310.60

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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.