Home / 47,851.96-71,777.94-12,791.80

Finding the Fourth Proportional to 47,851.96, 71,777.94 and 12,791.80

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Solution

The fourth proportional to 47,851.96, 71,777.94 and 12,791.80 is: 19,187.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,851.96 : 71,777.94 = 12,791.80 : x
  2. Step 2: Convert to fraction form
    47,851.96/71,777.94 = 12,791.80/x
  3. Step 3: Cross multiply
    47,851.96x = 71,777.94 × 12,791.80
  4. Step 4: Simplify right side
    47,851.96x = 918,169,052.89
  5. Step 5: Solve for x
    x = 918,169,052.89/47,851.96
  6. Step 6: Final answer
    x = 19,187.70

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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.