Home / 16,191.90-22,446.72-15,304.95

Finding the Fourth Proportional to 16,191.90, 22,446.72 and 15,304.95

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Solution

The fourth proportional to 16,191.90, 22,446.72 and 15,304.95 is: 21,217.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,191.90 : 22,446.72 = 15,304.95 : x
  2. Step 2: Convert to fraction form
    16,191.90/22,446.72 = 15,304.95/x
  3. Step 3: Cross multiply
    16,191.90x = 22,446.72 × 15,304.95
  4. Step 4: Simplify right side
    16,191.90x = 343,545,927.26
  5. Step 5: Solve for x
    x = 343,545,927.26/16,191.90
  6. Step 6: Final answer
    x = 21,217.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.