Home / 39,149.33-54,037.73-31,188.65

Finding the Fourth Proportional to 39,149.33, 54,037.73 and 31,188.65

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Solution

The fourth proportional to 39,149.33, 54,037.73 and 31,188.65 is: 43,049.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,149.33 : 54,037.73 = 31,188.65 : x
  2. Step 2: Convert to fraction form
    39,149.33/54,037.73 = 31,188.65/x
  3. Step 3: Cross multiply
    39,149.33x = 54,037.73 × 31,188.65
  4. Step 4: Simplify right side
    39,149.33x = 1,685,363,655.55
  5. Step 5: Solve for x
    x = 1,685,363,655.55/39,149.33
  6. Step 6: Final answer
    x = 43,049.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.