Home / 22,787.92-31,438.92-13,353.04

Finding the Fourth Proportional to 22,787.92, 31,438.92 and 13,353.04

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Solution

The fourth proportional to 22,787.92, 31,438.92 and 13,353.04 is: 18,422.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,787.92 : 31,438.92 = 13,353.04 : x
  2. Step 2: Convert to fraction form
    22,787.92/31,438.92 = 13,353.04/x
  3. Step 3: Cross multiply
    22,787.92x = 31,438.92 × 13,353.04
  4. Step 4: Simplify right side
    22,787.92x = 419,805,156.32
  5. Step 5: Solve for x
    x = 419,805,156.32/22,787.92
  6. Step 6: Final answer
    x = 18,422.27

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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.