Home / 29,938.78-41,316.45-18,456.22

Finding the Fourth Proportional to 29,938.78, 41,316.45 and 18,456.22

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Solution

The fourth proportional to 29,938.78, 41,316.45 and 18,456.22 is: 25,470.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,938.78 : 41,316.45 = 18,456.22 : x
  2. Step 2: Convert to fraction form
    29,938.78/41,316.45 = 18,456.22/x
  3. Step 3: Cross multiply
    29,938.78x = 41,316.45 × 18,456.22
  4. Step 4: Simplify right side
    29,938.78x = 762,545,490.82
  5. Step 5: Solve for x
    x = 762,545,490.82/29,938.78
  6. Step 6: Final answer
    x = 25,470.16

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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.