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Finding the Fourth Proportional to 47,995.53, 71,993.03 and 12,456.82

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Solution

The fourth proportional to 47,995.53, 71,993.03 and 12,456.82 is: 18,685.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,995.53 : 71,993.03 = 12,456.82 : x
  2. Step 2: Convert to fraction form
    47,995.53/71,993.03 = 12,456.82/x
  3. Step 3: Cross multiply
    47,995.53x = 71,993.03 × 12,456.82
  4. Step 4: Simplify right side
    47,995.53x = 896,804,243.67
  5. Step 5: Solve for x
    x = 896,804,243.67/47,995.53
  6. Step 6: Final answer
    x = 18,685.16

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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.