Home / 20,255.43-27,945.11-12,598.20

Finding the Fourth Proportional to 20,255.43, 27,945.11 and 12,598.20

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Solution

The fourth proportional to 20,255.43, 27,945.11 and 12,598.20 is: 17,380.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.43 : 27,945.11 = 12,598.20 : x
  2. Step 2: Convert to fraction form
    20,255.43/27,945.11 = 12,598.20/x
  3. Step 3: Cross multiply
    20,255.43x = 27,945.11 × 12,598.20
  4. Step 4: Simplify right side
    20,255.43x = 352,058,084.80
  5. Step 5: Solve for x
    x = 352,058,084.80/20,255.43
  6. Step 6: Final answer
    x = 17,380.92

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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.