Home / 22,131.85-30,541.92-13,179.73

Finding the Fourth Proportional to 22,131.85, 30,541.92 and 13,179.73

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Solution

The fourth proportional to 22,131.85, 30,541.92 and 13,179.73 is: 18,188.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,131.85 : 30,541.92 = 13,179.73 : x
  2. Step 2: Convert to fraction form
    22,131.85/30,541.92 = 13,179.73/x
  3. Step 3: Cross multiply
    22,131.85x = 30,541.92 × 13,179.73
  4. Step 4: Simplify right side
    22,131.85x = 402,534,259.28
  5. Step 5: Solve for x
    x = 402,534,259.28/22,131.85
  6. Step 6: Final answer
    x = 18,188.01

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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.