Home / 22,487.25-31,003.56-18,439.16

Finding the Fourth Proportional to 22,487.25, 31,003.56 and 18,439.16

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Solution

The fourth proportional to 22,487.25, 31,003.56 and 18,439.16 is: 25,422.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,487.25 : 31,003.56 = 18,439.16 : x
  2. Step 2: Convert to fraction form
    22,487.25/31,003.56 = 18,439.16/x
  3. Step 3: Cross multiply
    22,487.25x = 31,003.56 × 18,439.16
  4. Step 4: Simplify right side
    22,487.25x = 571,679,680.92
  5. Step 5: Solve for x
    x = 571,679,680.92/22,487.25
  6. Step 6: Final answer
    x = 25,422.39

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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.