Home / 38,129.78-57,193.86-10,427.78

Finding the Fourth Proportional to 38,129.78, 57,193.86 and 10,427.78

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Solution

The fourth proportional to 38,129.78, 57,193.86 and 10,427.78 is: 15,641.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,129.78 : 57,193.86 = 10,427.78 : x
  2. Step 2: Convert to fraction form
    38,129.78/57,193.86 = 10,427.78/x
  3. Step 3: Cross multiply
    38,129.78x = 57,193.86 × 10,427.78
  4. Step 4: Simplify right side
    38,129.78x = 596,404,989.43
  5. Step 5: Solve for x
    x = 596,404,989.43/38,129.78
  6. Step 6: Final answer
    x = 15,641.45

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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.