Home / 19,985.85-29,997.18-10,132.02

Finding the Fourth Proportional to 19,985.85, 29,997.18 and 10,132.02

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Solution

The fourth proportional to 19,985.85, 29,997.18 and 10,132.02 is: 15,207.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.85 : 29,997.18 = 10,132.02 : x
  2. Step 2: Convert to fraction form
    19,985.85/29,997.18 = 10,132.02/x
  3. Step 3: Cross multiply
    19,985.85x = 29,997.18 × 10,132.02
  4. Step 4: Simplify right side
    19,985.85x = 303,932,027.70
  5. Step 5: Solve for x
    x = 303,932,027.70/19,985.85
  6. Step 6: Final answer
    x = 15,207.36

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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.