Home / 38,135.72-57,196.56-15,943.20

Finding the Fourth Proportional to 38,135.72, 57,196.56 and 15,943.20

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Solution

The fourth proportional to 38,135.72, 57,196.56 and 15,943.20 is: 23,911.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,135.72 : 57,196.56 = 15,943.20 : x
  2. Step 2: Convert to fraction form
    38,135.72/57,196.56 = 15,943.20/x
  3. Step 3: Cross multiply
    38,135.72x = 57,196.56 × 15,943.20
  4. Step 4: Simplify right side
    38,135.72x = 911,896,195.39
  5. Step 5: Solve for x
    x = 911,896,195.39/38,135.72
  6. Step 6: Final answer
    x = 23,911.87

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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.