Home / 22,209.74-30,663.04-21,144.08

Finding the Fourth Proportional to 22,209.74, 30,663.04 and 21,144.08

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Solution

The fourth proportional to 22,209.74, 30,663.04 and 21,144.08 is: 29,191.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,209.74 : 30,663.04 = 21,144.08 : x
  2. Step 2: Convert to fraction form
    22,209.74/30,663.04 = 21,144.08/x
  3. Step 3: Cross multiply
    22,209.74x = 30,663.04 × 21,144.08
  4. Step 4: Simplify right side
    22,209.74x = 648,341,770.80
  5. Step 5: Solve for x
    x = 648,341,770.80/22,209.74
  6. Step 6: Final answer
    x = 29,191.78

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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.