Home / 36,436.60-54,620.78-19,772.20

Finding the Fourth Proportional to 36,436.60, 54,620.78 and 19,772.20

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Solution

The fourth proportional to 36,436.60, 54,620.78 and 19,772.20 is: 29,639.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,436.60 : 54,620.78 = 19,772.20 : x
  2. Step 2: Convert to fraction form
    36,436.60/54,620.78 = 19,772.20/x
  3. Step 3: Cross multiply
    36,436.60x = 54,620.78 × 19,772.20
  4. Step 4: Simplify right side
    36,436.60x = 1,079,972,986.32
  5. Step 5: Solve for x
    x = 1,079,972,986.32/36,436.60
  6. Step 6: Final answer
    x = 29,639.78

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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.