Home / 29,149.11-40,222.20-18,389.93

Finding the Fourth Proportional to 29,149.11, 40,222.20 and 18,389.93

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Solution

The fourth proportional to 29,149.11, 40,222.20 and 18,389.93 is: 25,375.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,149.11 : 40,222.20 = 18,389.93 : x
  2. Step 2: Convert to fraction form
    29,149.11/40,222.20 = 18,389.93/x
  3. Step 3: Cross multiply
    29,149.11x = 40,222.20 × 18,389.93
  4. Step 4: Simplify right side
    29,149.11x = 739,683,442.45
  5. Step 5: Solve for x
    x = 739,683,442.45/29,149.11
  6. Step 6: Final answer
    x = 25,375.85

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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.