Home / 23,120.40-31,897.52-15,167.04

Finding the Fourth Proportional to 23,120.40, 31,897.52 and 15,167.04

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Solution

The fourth proportional to 23,120.40, 31,897.52 and 15,167.04 is: 20,924.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,120.40 : 31,897.52 = 15,167.04 : x
  2. Step 2: Convert to fraction form
    23,120.40/31,897.52 = 15,167.04/x
  3. Step 3: Cross multiply
    23,120.40x = 31,897.52 × 15,167.04
  4. Step 4: Simplify right side
    23,120.40x = 483,790,961.74
  5. Step 5: Solve for x
    x = 483,790,961.74/23,120.40
  6. Step 6: Final answer
    x = 20,924.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.