Home / 31,813.96-47,648.24-15,185.66

Finding the Fourth Proportional to 31,813.96, 47,648.24 and 15,185.66

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Solution

The fourth proportional to 31,813.96, 47,648.24 and 15,185.66 is: 22,743.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,813.96 : 47,648.24 = 15,185.66 : x
  2. Step 2: Convert to fraction form
    31,813.96/47,648.24 = 15,185.66/x
  3. Step 3: Cross multiply
    31,813.96x = 47,648.24 × 15,185.66
  4. Step 4: Simplify right side
    31,813.96x = 723,569,896.31
  5. Step 5: Solve for x
    x = 723,569,896.31/31,813.96
  6. Step 6: Final answer
    x = 22,743.79

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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.