Home / 22,686.24-33,956.55-12,129.87

Finding the Fourth Proportional to 22,686.24, 33,956.55 and 12,129.87

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Solution

The fourth proportional to 22,686.24, 33,956.55 and 12,129.87 is: 18,155.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,686.24 : 33,956.55 = 12,129.87 : x
  2. Step 2: Convert to fraction form
    22,686.24/33,956.55 = 12,129.87/x
  3. Step 3: Cross multiply
    22,686.24x = 33,956.55 × 12,129.87
  4. Step 4: Simplify right side
    22,686.24x = 411,888,537.15
  5. Step 5: Solve for x
    x = 411,888,537.15/22,686.24
  6. Step 6: Final answer
    x = 18,155.87

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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.