Home / 20,253.60-30,378.96-5,463.36

Finding the Fourth Proportional to 20,253.60, 30,378.96 and 5,463.36

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Solution

The fourth proportional to 20,253.60, 30,378.96 and 5,463.36 is: 8,194.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,253.60 : 30,378.96 = 5,463.36 : x
  2. Step 2: Convert to fraction form
    20,253.60/30,378.96 = 5,463.36/x
  3. Step 3: Cross multiply
    20,253.60x = 30,378.96 × 5,463.36
  4. Step 4: Simplify right side
    20,253.60x = 165,971,194.91
  5. Step 5: Solve for x
    x = 165,971,194.91/20,253.60
  6. Step 6: Final answer
    x = 8,194.65

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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.