Home / 47,531.40-71,296.92-11,992.80

Finding the Fourth Proportional to 47,531.40, 71,296.92 and 11,992.80

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Solution

The fourth proportional to 47,531.40, 71,296.92 and 11,992.80 is: 17,989.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,531.40 : 71,296.92 = 11,992.80 : x
  2. Step 2: Convert to fraction form
    47,531.40/71,296.92 = 11,992.80/x
  3. Step 3: Cross multiply
    47,531.40x = 71,296.92 × 11,992.80
  4. Step 4: Simplify right side
    47,531.40x = 855,049,702.18
  5. Step 5: Solve for x
    x = 855,049,702.18/47,531.40
  6. Step 6: Final answer
    x = 17,989.15

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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.