Home / 47,665.20-71,497.80-12,608.40

Finding the Fourth Proportional to 47,665.20, 71,497.80 and 12,608.40

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Solution

The fourth proportional to 47,665.20, 71,497.80 and 12,608.40 is: 18,912.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,665.20 : 71,497.80 = 12,608.40 : x
  2. Step 2: Convert to fraction form
    47,665.20/71,497.80 = 12,608.40/x
  3. Step 3: Cross multiply
    47,665.20x = 71,497.80 × 12,608.40
  4. Step 4: Simplify right side
    47,665.20x = 901,472,861.52
  5. Step 5: Solve for x
    x = 901,472,861.52/47,665.20
  6. Step 6: Final answer
    x = 18,912.60

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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.