Home / 22,250.40-33,375.60-21,127.20

Finding the Fourth Proportional to 22,250.40, 33,375.60 and 21,127.20

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Solution

The fourth proportional to 22,250.40, 33,375.60 and 21,127.20 is: 31,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,250.40 : 33,375.60 = 21,127.20 : x
  2. Step 2: Convert to fraction form
    22,250.40/33,375.60 = 21,127.20/x
  3. Step 3: Cross multiply
    22,250.40x = 33,375.60 × 21,127.20
  4. Step 4: Simplify right side
    22,250.40x = 705,132,976.32
  5. Step 5: Solve for x
    x = 705,132,976.32/22,250.40
  6. Step 6: Final answer
    x = 31,690.80

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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.