Home / 47,716.28-71,574.38-12,177.60

Finding the Fourth Proportional to 47,716.28, 71,574.38 and 12,177.60

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Solution

The fourth proportional to 47,716.28, 71,574.38 and 12,177.60 is: 18,266.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,716.28 : 71,574.38 = 12,177.60 : x
  2. Step 2: Convert to fraction form
    47,716.28/71,574.38 = 12,177.60/x
  3. Step 3: Cross multiply
    47,716.28x = 71,574.38 × 12,177.60
  4. Step 4: Simplify right side
    47,716.28x = 871,604,169.89
  5. Step 5: Solve for x
    x = 871,604,169.89/47,716.28
  6. Step 6: Final answer
    x = 18,266.39

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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.