Home / 22,218.48-30,660.27-12,144.92

Finding the Fourth Proportional to 22,218.48, 30,660.27 and 12,144.92

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Solution

The fourth proportional to 22,218.48, 30,660.27 and 12,144.92 is: 16,759.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,218.48 : 30,660.27 = 12,144.92 : x
  2. Step 2: Convert to fraction form
    22,218.48/30,660.27 = 12,144.92/x
  3. Step 3: Cross multiply
    22,218.48x = 30,660.27 × 12,144.92
  4. Step 4: Simplify right side
    22,218.48x = 372,366,373.03
  5. Step 5: Solve for x
    x = 372,366,373.03/22,218.48
  6. Step 6: Final answer
    x = 16,759.31

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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.