Home / 22,739.43-31,381.28-13,179.63

Finding the Fourth Proportional to 22,739.43, 31,381.28 and 13,179.63

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Solution

The fourth proportional to 22,739.43, 31,381.28 and 13,179.63 is: 18,188.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,739.43 : 31,381.28 = 13,179.63 : x
  2. Step 2: Convert to fraction form
    22,739.43/31,381.28 = 13,179.63/x
  3. Step 3: Cross multiply
    22,739.43x = 31,381.28 × 13,179.63
  4. Step 4: Simplify right side
    22,739.43x = 413,593,659.33
  5. Step 5: Solve for x
    x = 413,593,659.33/22,739.43
  6. Step 6: Final answer
    x = 18,188.39

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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.