Home / 20,445.64-30,680.36-8,598.55

Finding the Fourth Proportional to 20,445.64, 30,680.36 and 8,598.55

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Solution

The fourth proportional to 20,445.64, 30,680.36 and 8,598.55 is: 12,902.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,445.64 : 30,680.36 = 8,598.55 : x
  2. Step 2: Convert to fraction form
    20,445.64/30,680.36 = 8,598.55/x
  3. Step 3: Cross multiply
    20,445.64x = 30,680.36 × 8,598.55
  4. Step 4: Simplify right side
    20,445.64x = 263,806,609.48
  5. Step 5: Solve for x
    x = 263,806,609.48/20,445.64
  6. Step 6: Final answer
    x = 12,902.83

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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.