Home / 22,758.12-34,129.80-8,717.40

Finding the Fourth Proportional to 22,758.12, 34,129.80 and 8,717.40

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Solution

The fourth proportional to 22,758.12, 34,129.80 and 8,717.40 is: 13,073.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,758.12 : 34,129.80 = 8,717.40 : x
  2. Step 2: Convert to fraction form
    22,758.12/34,129.80 = 8,717.40/x
  3. Step 3: Cross multiply
    22,758.12x = 34,129.80 × 8,717.40
  4. Step 4: Simplify right side
    22,758.12x = 297,522,989.61
  5. Step 5: Solve for x
    x = 297,522,989.61/22,758.12
  6. Step 6: Final answer
    x = 13,073.27

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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.