Home / 22,656.28-34,005.18-12,138.18

Finding the Fourth Proportional to 22,656.28, 34,005.18 and 12,138.18

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Solution

The fourth proportional to 22,656.28, 34,005.18 and 12,138.18 is: 18,218.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,656.28 : 34,005.18 = 12,138.18 : x
  2. Step 2: Convert to fraction form
    22,656.28/34,005.18 = 12,138.18/x
  3. Step 3: Cross multiply
    22,656.28x = 34,005.18 × 12,138.18
  4. Step 4: Simplify right side
    22,656.28x = 412,760,765.06
  5. Step 5: Solve for x
    x = 412,760,765.06/22,656.28
  6. Step 6: Final answer
    x = 18,218.38

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1.5x scale

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.