Home / 38,188.81-57,278.97-11,891.35

Finding the Fourth Proportional to 38,188.81, 57,278.97 and 11,891.35

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Solution

The fourth proportional to 38,188.81, 57,278.97 and 11,891.35 is: 17,835.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,188.81 : 57,278.97 = 11,891.35 : x
  2. Step 2: Convert to fraction form
    38,188.81/57,278.97 = 11,891.35/x
  3. Step 3: Cross multiply
    38,188.81x = 57,278.97 × 11,891.35
  4. Step 4: Simplify right side
    38,188.81x = 681,124,279.91
  5. Step 5: Solve for x
    x = 681,124,279.91/38,188.81
  6. Step 6: Final answer
    x = 17,835.70

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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.