Home / 38,101.34-57,131.12-11,798.78

Finding the Fourth Proportional to 38,101.34, 57,131.12 and 11,798.78

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Solution

The fourth proportional to 38,101.34, 57,131.12 and 11,798.78 is: 17,691.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,101.34 : 57,131.12 = 11,798.78 : x
  2. Step 2: Convert to fraction form
    38,101.34/57,131.12 = 11,798.78/x
  3. Step 3: Cross multiply
    38,101.34x = 57,131.12 × 11,798.78
  4. Step 4: Simplify right side
    38,101.34x = 674,077,259.87
  5. Step 5: Solve for x
    x = 674,077,259.87/38,101.34
  6. Step 6: Final answer
    x = 17,691.70

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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.