Home / 38,634.71-57,960.36-11,980.13

Finding the Fourth Proportional to 38,634.71, 57,960.36 and 11,980.13

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Solution

The fourth proportional to 38,634.71, 57,960.36 and 11,980.13 is: 17,972.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,634.71 : 57,960.36 = 11,980.13 : x
  2. Step 2: Convert to fraction form
    38,634.71/57,960.36 = 11,980.13/x
  3. Step 3: Cross multiply
    38,634.71x = 57,960.36 × 11,980.13
  4. Step 4: Simplify right side
    38,634.71x = 694,372,491.85
  5. Step 5: Solve for x
    x = 694,372,491.85/38,634.71
  6. Step 6: Final answer
    x = 17,972.76

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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.