Home / 20,164.74-30,247.08-8,325.18

Finding the Fourth Proportional to 20,164.74, 30,247.08 and 8,325.18

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Solution

The fourth proportional to 20,164.74, 30,247.08 and 8,325.18 is: 12,487.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.74 : 30,247.08 = 8,325.18 : x
  2. Step 2: Convert to fraction form
    20,164.74/30,247.08 = 8,325.18/x
  3. Step 3: Cross multiply
    20,164.74x = 30,247.08 × 8,325.18
  4. Step 4: Simplify right side
    20,164.74x = 251,812,385.47
  5. Step 5: Solve for x
    x = 251,812,385.47/20,164.74
  6. Step 6: Final answer
    x = 12,487.76

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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.