Home / 22,213.80-33,320.70-21,436.20

Finding the Fourth Proportional to 22,213.80, 33,320.70 and 21,436.20

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Solution

The fourth proportional to 22,213.80, 33,320.70 and 21,436.20 is: 32,154.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,213.80 : 33,320.70 = 21,436.20 : x
  2. Step 2: Convert to fraction form
    22,213.80/33,320.70 = 21,436.20/x
  3. Step 3: Cross multiply
    22,213.80x = 33,320.70 × 21,436.20
  4. Step 4: Simplify right side
    22,213.80x = 714,269,189.34
  5. Step 5: Solve for x
    x = 714,269,189.34/22,213.80
  6. Step 6: Final answer
    x = 32,154.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.