Home / 47,879.16-71,817.39-12,818.82

Finding the Fourth Proportional to 47,879.16, 71,817.39 and 12,818.82

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Solution

The fourth proportional to 47,879.16, 71,817.39 and 12,818.82 is: 19,227.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,879.16 : 71,817.39 = 12,818.82 : x
  2. Step 2: Convert to fraction form
    47,879.16/71,817.39 = 12,818.82/x
  3. Step 3: Cross multiply
    47,879.16x = 71,817.39 × 12,818.82
  4. Step 4: Simplify right side
    47,879.16x = 920,614,195.28
  5. Step 5: Solve for x
    x = 920,614,195.28/47,879.16
  6. Step 6: Final answer
    x = 19,227.87

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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.