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Finding the Fourth Proportional to 20,522.47, 30,790.19 and 8,841.19

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Solution

The fourth proportional to 20,522.47, 30,790.19 and 8,841.19 is: 13,264.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522.47 : 30,790.19 = 8,841.19 : x
  2. Step 2: Convert to fraction form
    20,522.47/30,790.19 = 8,841.19/x
  3. Step 3: Cross multiply
    20,522.47x = 30,790.19 × 8,841.19
  4. Step 4: Simplify right side
    20,522.47x = 272,221,919.93
  5. Step 5: Solve for x
    x = 272,221,919.93/20,522.47
  6. Step 6: Final answer
    x = 13,264.58

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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.