Home / 38,665.47-57,999.42-18,397.80

Finding the Fourth Proportional to 38,665.47, 57,999.42 and 18,397.80

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Solution

The fourth proportional to 38,665.47, 57,999.42 and 18,397.80 is: 27,597.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,665.47 : 57,999.42 = 18,397.80 : x
  2. Step 2: Convert to fraction form
    38,665.47/57,999.42 = 18,397.80/x
  3. Step 3: Cross multiply
    38,665.47x = 57,999.42 × 18,397.80
  4. Step 4: Simplify right side
    38,665.47x = 1,067,061,729.28
  5. Step 5: Solve for x
    x = 1,067,061,729.28/38,665.47
  6. Step 6: Final answer
    x = 27,597.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.