Home / 23,011.20-34,516.80-8,220.60

Finding the Fourth Proportional to 23,011.20, 34,516.80 and 8,220.60

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Solution

The fourth proportional to 23,011.20, 34,516.80 and 8,220.60 is: 12,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,011.20 : 34,516.80 = 8,220.60 : x
  2. Step 2: Convert to fraction form
    23,011.20/34,516.80 = 8,220.60/x
  3. Step 3: Cross multiply
    23,011.20x = 34,516.80 × 8,220.60
  4. Step 4: Simplify right side
    23,011.20x = 283,748,806.08
  5. Step 5: Solve for x
    x = 283,748,806.08/23,011.20
  6. Step 6: Final answer
    x = 12,330.90

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Double scale
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Similar ratio
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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.