Home / 22,639.27-31,242.38-12,568.44

Finding the Fourth Proportional to 22,639.27, 31,242.38 and 12,568.44

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Solution

The fourth proportional to 22,639.27, 31,242.38 and 12,568.44 is: 17,344.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,639.27 : 31,242.38 = 12,568.44 : x
  2. Step 2: Convert to fraction form
    22,639.27/31,242.38 = 12,568.44/x
  3. Step 3: Cross multiply
    22,639.27x = 31,242.38 × 12,568.44
  4. Step 4: Simplify right side
    22,639.27x = 392,667,978.49
  5. Step 5: Solve for x
    x = 392,667,978.49/22,639.27
  6. Step 6: Final answer
    x = 17,344.55

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1.5x scale

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.