Home / 38,138.10-57,218.13-11,842.98

Finding the Fourth Proportional to 38,138.10, 57,218.13 and 11,842.98

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Solution

The fourth proportional to 38,138.10, 57,218.13 and 11,842.98 is: 17,767.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,138.10 : 57,218.13 = 11,842.98 : x
  2. Step 2: Convert to fraction form
    38,138.10/57,218.13 = 11,842.98/x
  3. Step 3: Cross multiply
    38,138.10x = 57,218.13 × 11,842.98
  4. Step 4: Simplify right side
    38,138.10x = 677,633,169.23
  5. Step 5: Solve for x
    x = 677,633,169.23/38,138.10
  6. Step 6: Final answer
    x = 17,767.88

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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.