Home / 22,921.92-31,589.40-17,878.20

Finding the Fourth Proportional to 22,921.92, 31,589.40 and 17,878.20

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Solution

The fourth proportional to 22,921.92, 31,589.40 and 17,878.20 is: 24,638.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,921.92 : 31,589.40 = 17,878.20 : x
  2. Step 2: Convert to fraction form
    22,921.92/31,589.40 = 17,878.20/x
  3. Step 3: Cross multiply
    22,921.92x = 31,589.40 × 17,878.20
  4. Step 4: Simplify right side
    22,921.92x = 564,761,611.08
  5. Step 5: Solve for x
    x = 564,761,611.08/22,921.92
  6. Step 6: Final answer
    x = 24,638.49

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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.