Home / 31,913.80-47,847.26-15,285.51

Finding the Fourth Proportional to 31,913.80, 47,847.26 and 15,285.51

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Solution

The fourth proportional to 31,913.80, 47,847.26 and 15,285.51 is: 22,917.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,913.80 : 47,847.26 = 15,285.51 : x
  2. Step 2: Convert to fraction form
    31,913.80/47,847.26 = 15,285.51/x
  3. Step 3: Cross multiply
    31,913.80x = 47,847.26 × 15,285.51
  4. Step 4: Simplify right side
    31,913.80x = 731,369,723.44
  5. Step 5: Solve for x
    x = 731,369,723.44/31,913.80
  6. Step 6: Final answer
    x = 22,917.04

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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.