Home / 22,031.60-30,403.74-11,960.22

Finding the Fourth Proportional to 22,031.60, 30,403.74 and 11,960.22

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Solution

The fourth proportional to 22,031.60, 30,403.74 and 11,960.22 is: 16,505.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,031.60 : 30,403.74 = 11,960.22 : x
  2. Step 2: Convert to fraction form
    22,031.60/30,403.74 = 11,960.22/x
  3. Step 3: Cross multiply
    22,031.60x = 30,403.74 × 11,960.22
  4. Step 4: Simplify right side
    22,031.60x = 363,635,419.22
  5. Step 5: Solve for x
    x = 363,635,419.22/22,031.60
  6. Step 6: Final answer
    x = 16,505.18

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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.