Home / 23,117.60-31,882.16-18,639.92

Finding the Fourth Proportional to 23,117.60, 31,882.16 and 18,639.92

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Solution

The fourth proportional to 23,117.60, 31,882.16 and 18,639.92 is: 25,706.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,117.60 : 31,882.16 = 18,639.92 : x
  2. Step 2: Convert to fraction form
    23,117.60/31,882.16 = 18,639.92/x
  3. Step 3: Cross multiply
    23,117.60x = 31,882.16 × 18,639.92
  4. Step 4: Simplify right side
    23,117.60x = 594,280,911.83
  5. Step 5: Solve for x
    x = 594,280,911.83/23,117.60
  6. Step 6: Final answer
    x = 25,706.86

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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.