Home / 22,640.12-31,242.78-12,568.04

Finding the Fourth Proportional to 22,640.12, 31,242.78 and 12,568.04

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Solution

The fourth proportional to 22,640.12, 31,242.78 and 12,568.04 is: 17,343.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,640.12 : 31,242.78 = 12,568.04 : x
  2. Step 2: Convert to fraction form
    22,640.12/31,242.78 = 12,568.04/x
  3. Step 3: Cross multiply
    22,640.12x = 31,242.78 × 12,568.04
  4. Step 4: Simplify right side
    22,640.12x = 392,660,508.75
  5. Step 5: Solve for x
    x = 392,660,508.75/22,640.12
  6. Step 6: Final answer
    x = 17,343.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.