Home / 22,731.28-31,369.48-12,659.46

Finding the Fourth Proportional to 22,731.28, 31,369.48 and 12,659.46

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Solution

The fourth proportional to 22,731.28, 31,369.48 and 12,659.46 is: 17,470.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,731.28 : 31,369.48 = 12,659.46 : x
  2. Step 2: Convert to fraction form
    22,731.28/31,369.48 = 12,659.46/x
  3. Step 3: Cross multiply
    22,731.28x = 31,369.48 × 12,659.46
  4. Step 4: Simplify right side
    22,731.28x = 397,120,677.28
  5. Step 5: Solve for x
    x = 397,120,677.28/22,731.28
  6. Step 6: Final answer
    x = 17,470.23

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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.