Home / 20,532.74-30,794.40-5,742.70

Finding the Fourth Proportional to 20,532.74, 30,794.40 and 5,742.70

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Solution

The fourth proportional to 20,532.74, 30,794.40 and 5,742.70 is: 8,612.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,532.74 : 30,794.40 = 5,742.70 : x
  2. Step 2: Convert to fraction form
    20,532.74/30,794.40 = 5,742.70/x
  3. Step 3: Cross multiply
    20,532.74x = 30,794.40 × 5,742.70
  4. Step 4: Simplify right side
    20,532.74x = 176,843,000.88
  5. Step 5: Solve for x
    x = 176,843,000.88/20,532.74
  6. Step 6: Final answer
    x = 8,612.73

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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.