Home / 31,884.15-47,805.72-15,243.81

Finding the Fourth Proportional to 31,884.15, 47,805.72 and 15,243.81

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Solution

The fourth proportional to 31,884.15, 47,805.72 and 15,243.81 is: 22,855.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,884.15 : 47,805.72 = 15,243.81 : x
  2. Step 2: Convert to fraction form
    31,884.15/47,805.72 = 15,243.81/x
  3. Step 3: Cross multiply
    31,884.15x = 47,805.72 × 15,243.81
  4. Step 4: Simplify right side
    31,884.15x = 728,741,312.59
  5. Step 5: Solve for x
    x = 728,741,312.59/31,884.15
  6. Step 6: Final answer
    x = 22,855.91

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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.