Home / 19,987.24-29,972.12-10,625

Finding the Fourth Proportional to 19,987.24, 29,972.12 and 10,625

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Solution

The fourth proportional to 19,987.24, 29,972.12 and 10,625 is: 15,932.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.24 : 29,972.12 = 10,625 : x
  2. Step 2: Convert to fraction form
    19,987.24/29,972.12 = 10,625/x
  3. Step 3: Cross multiply
    19,987.24x = 29,972.12 × 10,625
  4. Step 4: Simplify right side
    19,987.24x = 318,453,775
  5. Step 5: Solve for x
    x = 318,453,775/19,987.24
  6. Step 6: Final answer
    x = 15,932.85

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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.