Home / 38,657.64-57,963.18-21,103.08

Finding the Fourth Proportional to 38,657.64, 57,963.18 and 21,103.08

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Solution

The fourth proportional to 38,657.64, 57,963.18 and 21,103.08 is: 31,641.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,657.64 : 57,963.18 = 21,103.08 : x
  2. Step 2: Convert to fraction form
    38,657.64/57,963.18 = 21,103.08/x
  3. Step 3: Cross multiply
    38,657.64x = 57,963.18 × 21,103.08
  4. Step 4: Simplify right side
    38,657.64x = 1,223,201,624.59
  5. Step 5: Solve for x
    x = 1,223,201,624.59/38,657.64
  6. Step 6: Final answer
    x = 31,641.91

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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.