Home / 20,230.12-27,939.18-18,031.24

Finding the Fourth Proportional to 20,230.12, 27,939.18 and 18,031.24

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Solution

The fourth proportional to 20,230.12, 27,939.18 and 18,031.24 is: 24,902.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.12 : 27,939.18 = 18,031.24 : x
  2. Step 2: Convert to fraction form
    20,230.12/27,939.18 = 18,031.24/x
  3. Step 3: Cross multiply
    20,230.12x = 27,939.18 × 18,031.24
  4. Step 4: Simplify right side
    20,230.12x = 503,778,059.98
  5. Step 5: Solve for x
    x = 503,778,059.98/20,230.12
  6. Step 6: Final answer
    x = 24,902.38

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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.