Home / 22,761.45-34,144.20-8,720.91

Finding the Fourth Proportional to 22,761.45, 34,144.20 and 8,720.91

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Solution

The fourth proportional to 22,761.45, 34,144.20 and 8,720.91 is: 13,082.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,761.45 : 34,144.20 = 8,720.91 : x
  2. Step 2: Convert to fraction form
    22,761.45/34,144.20 = 8,720.91/x
  3. Step 3: Cross multiply
    22,761.45x = 34,144.20 × 8,720.91
  4. Step 4: Simplify right side
    22,761.45x = 297,768,495.22
  5. Step 5: Solve for x
    x = 297,768,495.22/22,761.45
  6. Step 6: Final answer
    x = 13,082.14

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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.