Home / 47,515.12-71,273.22-12,458.32

Finding the Fourth Proportional to 47,515.12, 71,273.22 and 12,458.32

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Solution

The fourth proportional to 47,515.12, 71,273.22 and 12,458.32 is: 18,687.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,515.12 : 71,273.22 = 12,458.32 : x
  2. Step 2: Convert to fraction form
    47,515.12/71,273.22 = 12,458.32/x
  3. Step 3: Cross multiply
    47,515.12x = 71,273.22 × 12,458.32
  4. Step 4: Simplify right side
    47,515.12x = 887,944,582.19
  5. Step 5: Solve for x
    x = 887,944,582.19/47,515.12
  6. Step 6: Final answer
    x = 18,687.62

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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.