Home / 29,420.82-40,572.90-18,792

Finding the Fourth Proportional to 29,420.82, 40,572.90 and 18,792

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Solution

The fourth proportional to 29,420.82, 40,572.90 and 18,792 is: 25,915.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,420.82 : 40,572.90 = 18,792 : x
  2. Step 2: Convert to fraction form
    29,420.82/40,572.90 = 18,792/x
  3. Step 3: Cross multiply
    29,420.82x = 40,572.90 × 18,792
  4. Step 4: Simplify right side
    29,420.82x = 762,445,936.80
  5. Step 5: Solve for x
    x = 762,445,936.80/29,420.82
  6. Step 6: Final answer
    x = 25,915.18

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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.