Home / 22,678.13-33,944.40-12,121.76

Finding the Fourth Proportional to 22,678.13, 33,944.40 and 12,121.76

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Solution

The fourth proportional to 22,678.13, 33,944.40 and 12,121.76 is: 18,143.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,678.13 : 33,944.40 = 12,121.76 : x
  2. Step 2: Convert to fraction form
    22,678.13/33,944.40 = 12,121.76/x
  3. Step 3: Cross multiply
    22,678.13x = 33,944.40 × 12,121.76
  4. Step 4: Simplify right side
    22,678.13x = 411,465,700.42
  5. Step 5: Solve for x
    x = 411,465,700.42/22,678.13
  6. Step 6: Final answer
    x = 18,143.73

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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.