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Finding the Fourth Proportional to 20,841.59, 31,249.06 and 9,003.08

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Solution

The fourth proportional to 20,841.59, 31,249.06 and 9,003.08 is: 13,498.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.59 : 31,249.06 = 9,003.08 : x
  2. Step 2: Convert to fraction form
    20,841.59/31,249.06 = 9,003.08/x
  3. Step 3: Cross multiply
    20,841.59x = 31,249.06 × 9,003.08
  4. Step 4: Simplify right side
    20,841.59x = 281,337,842.72
  5. Step 5: Solve for x
    x = 281,337,842.72/20,841.59
  6. Step 6: Final answer
    x = 13,498.86

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1.5x scale

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.