Home / 22,664.07-31,240.05-15,393.90

Finding the Fourth Proportional to 22,664.07, 31,240.05 and 15,393.90

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Solution

The fourth proportional to 22,664.07, 31,240.05 and 15,393.90 is: 21,218.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,664.07 : 31,240.05 = 15,393.90 : x
  2. Step 2: Convert to fraction form
    22,664.07/31,240.05 = 15,393.90/x
  3. Step 3: Cross multiply
    22,664.07x = 31,240.05 × 15,393.90
  4. Step 4: Simplify right side
    22,664.07x = 480,906,205.70
  5. Step 5: Solve for x
    x = 480,906,205.70/22,664.07
  6. Step 6: Final answer
    x = 21,218.88

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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.