Home / 22,031.85-30,404.19-11,960.40

Finding the Fourth Proportional to 22,031.85, 30,404.19 and 11,960.40

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Solution

The fourth proportional to 22,031.85, 30,404.19 and 11,960.40 is: 16,505.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,031.85 : 30,404.19 = 11,960.40 : x
  2. Step 2: Convert to fraction form
    22,031.85/30,404.19 = 11,960.40/x
  3. Step 3: Cross multiply
    22,031.85x = 30,404.19 × 11,960.40
  4. Step 4: Simplify right side
    22,031.85x = 363,646,274.08
  5. Step 5: Solve for x
    x = 363,646,274.08/22,031.85
  6. Step 6: Final answer
    x = 16,505.48

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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.