Home / 38,422.72-57,631.92-13,453.12

Finding the Fourth Proportional to 38,422.72, 57,631.92 and 13,453.12

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Solution

The fourth proportional to 38,422.72, 57,631.92 and 13,453.12 is: 20,178.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,422.72 : 57,631.92 = 13,453.12 : x
  2. Step 2: Convert to fraction form
    38,422.72/57,631.92 = 13,453.12/x
  3. Step 3: Cross multiply
    38,422.72x = 57,631.92 × 13,453.12
  4. Step 4: Simplify right side
    38,422.72x = 775,329,135.59
  5. Step 5: Solve for x
    x = 775,329,135.59/38,422.72
  6. Step 6: Final answer
    x = 20,178.92

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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.