Home / 47,820.18-71,760.24-18,240.60

Finding the Fourth Proportional to 47,820.18, 71,760.24 and 18,240.60

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Solution

The fourth proportional to 47,820.18, 71,760.24 and 18,240.60 is: 27,372.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,820.18 : 71,760.24 = 18,240.60 : x
  2. Step 2: Convert to fraction form
    47,820.18/71,760.24 = 18,240.60/x
  3. Step 3: Cross multiply
    47,820.18x = 71,760.24 × 18,240.60
  4. Step 4: Simplify right side
    47,820.18x = 1,308,949,833.74
  5. Step 5: Solve for x
    x = 1,308,949,833.74/47,820.18
  6. Step 6: Final answer
    x = 27,372.33

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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.