Home / 20,531.60-30,797.39-4,949.22

Finding the Fourth Proportional to 20,531.60, 30,797.39 and 4,949.22

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Solution

The fourth proportional to 20,531.60, 30,797.39 and 4,949.22 is: 7,423.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,531.60 : 30,797.39 = 4,949.22 : x
  2. Step 2: Convert to fraction form
    20,531.60/30,797.39 = 4,949.22/x
  3. Step 3: Cross multiply
    20,531.60x = 30,797.39 × 4,949.22
  4. Step 4: Simplify right side
    20,531.60x = 152,423,058.54
  5. Step 5: Solve for x
    x = 152,423,058.54/20,531.60
  6. Step 6: Final answer
    x = 7,423.83

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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.