Home / 47,515.40-71,273.40-12,454.75

Finding the Fourth Proportional to 47,515.40, 71,273.40 and 12,454.75

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Solution

The fourth proportional to 47,515.40, 71,273.40 and 12,454.75 is: 18,682.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,515.40 : 71,273.40 = 12,454.75 : x
  2. Step 2: Convert to fraction form
    47,515.40/71,273.40 = 12,454.75/x
  3. Step 3: Cross multiply
    47,515.40x = 71,273.40 × 12,454.75
  4. Step 4: Simplify right side
    47,515.40x = 887,692,378.65
  5. Step 5: Solve for x
    x = 887,692,378.65/47,515.40
  6. Step 6: Final answer
    x = 18,682.20

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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.