Home / 20,132.64-30,208.63-8,295.05

Finding the Fourth Proportional to 20,132.64, 30,208.63 and 8,295.05

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Solution

The fourth proportional to 20,132.64, 30,208.63 and 8,295.05 is: 12,446.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.64 : 30,208.63 = 8,295.05 : x
  2. Step 2: Convert to fraction form
    20,132.64/30,208.63 = 8,295.05/x
  3. Step 3: Cross multiply
    20,132.64x = 30,208.63 × 8,295.05
  4. Step 4: Simplify right side
    20,132.64x = 250,582,096.28
  5. Step 5: Solve for x
    x = 250,582,096.28/20,132.64
  6. Step 6: Final answer
    x = 12,446.56

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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.