Home / 47,857.56-71,780.76-12,799.98

Finding the Fourth Proportional to 47,857.56, 71,780.76 and 12,799.98

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Solution

The fourth proportional to 47,857.56, 71,780.76 and 12,799.98 is: 19,198.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,857.56 : 71,780.76 = 12,799.98 : x
  2. Step 2: Convert to fraction form
    47,857.56/71,780.76 = 12,799.98/x
  3. Step 3: Cross multiply
    47,857.56x = 71,780.76 × 12,799.98
  4. Step 4: Simplify right side
    47,857.56x = 918,792,292.38
  5. Step 5: Solve for x
    x = 918,792,292.38/47,857.56
  6. Step 6: Final answer
    x = 19,198.48

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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.