Home / 38,147.10-57,204.45-18,431.70

Finding the Fourth Proportional to 38,147.10, 57,204.45 and 18,431.70

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Solution

The fourth proportional to 38,147.10, 57,204.45 and 18,431.70 is: 27,639.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,147.10 : 57,204.45 = 18,431.70 : x
  2. Step 2: Convert to fraction form
    38,147.10/57,204.45 = 18,431.70/x
  3. Step 3: Cross multiply
    38,147.10x = 57,204.45 × 18,431.70
  4. Step 4: Simplify right side
    38,147.10x = 1,054,375,261.07
  5. Step 5: Solve for x
    x = 1,054,375,261.07/38,147.10
  6. Step 6: Final answer
    x = 27,639.72

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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.