Home / 47,728.80-71,566.20-18,147.60

Finding the Fourth Proportional to 47,728.80, 71,566.20 and 18,147.60

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Solution

The fourth proportional to 47,728.80, 71,566.20 and 18,147.60 is: 27,211.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,728.80 : 71,566.20 = 18,147.60 : x
  2. Step 2: Convert to fraction form
    47,728.80/71,566.20 = 18,147.60/x
  3. Step 3: Cross multiply
    47,728.80x = 71,566.20 × 18,147.60
  4. Step 4: Simplify right side
    47,728.80x = 1,298,754,771.12
  5. Step 5: Solve for x
    x = 1,298,754,771.12/47,728.80
  6. Step 6: Final answer
    x = 27,211.13

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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.