Home / 23,110.97-31,893.08-12,500.78

Finding the Fourth Proportional to 23,110.97, 31,893.08 and 12,500.78

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Solution

The fourth proportional to 23,110.97, 31,893.08 and 12,500.78 is: 17,251.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,110.97 : 31,893.08 = 12,500.78 : x
  2. Step 2: Convert to fraction form
    23,110.97/31,893.08 = 12,500.78/x
  3. Step 3: Cross multiply
    23,110.97x = 31,893.08 × 12,500.78
  4. Step 4: Simplify right side
    23,110.97x = 398,688,154.63
  5. Step 5: Solve for x
    x = 398,688,154.63/23,110.97
  6. Step 6: Final answer
    x = 17,251.04

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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.