Home / 22,031.96-30,404.12-11,960.40

Finding the Fourth Proportional to 22,031.96, 30,404.12 and 11,960.40

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Solution

The fourth proportional to 22,031.96, 30,404.12 and 11,960.40 is: 16,505.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,031.96 : 30,404.12 = 11,960.40 : x
  2. Step 2: Convert to fraction form
    22,031.96/30,404.12 = 11,960.40/x
  3. Step 3: Cross multiply
    22,031.96x = 30,404.12 × 11,960.40
  4. Step 4: Simplify right side
    22,031.96x = 363,645,436.85
  5. Step 5: Solve for x
    x = 363,645,436.85/22,031.96
  6. Step 6: Final answer
    x = 16,505.36

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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.