Home / 22,121.52-30,527.46-12,691.56

Finding the Fourth Proportional to 22,121.52, 30,527.46 and 12,691.56

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Solution

The fourth proportional to 22,121.52, 30,527.46 and 12,691.56 is: 17,514.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.52 : 30,527.46 = 12,691.56 : x
  2. Step 2: Convert to fraction form
    22,121.52/30,527.46 = 12,691.56/x
  3. Step 3: Cross multiply
    22,121.52x = 30,527.46 × 12,691.56
  4. Step 4: Simplify right side
    22,121.52x = 387,441,090.24
  5. Step 5: Solve for x
    x = 387,441,090.24/22,121.52
  6. Step 6: Final answer
    x = 17,514.22

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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.