Home / 22,227.36-30,631.29-15,928.80

Finding the Fourth Proportional to 22,227.36, 30,631.29 and 15,928.80

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Solution

The fourth proportional to 22,227.36, 30,631.29 and 15,928.80 is: 21,951.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,227.36 : 30,631.29 = 15,928.80 : x
  2. Step 2: Convert to fraction form
    22,227.36/30,631.29 = 15,928.80/x
  3. Step 3: Cross multiply
    22,227.36x = 30,631.29 × 15,928.80
  4. Step 4: Simplify right side
    22,227.36x = 487,919,692.15
  5. Step 5: Solve for x
    x = 487,919,692.15/22,227.36
  6. Step 6: Final answer
    x = 21,951.31

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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.