Home / 39,715.48-54,864.30-31,747.24

Finding the Fourth Proportional to 39,715.48, 54,864.30 and 31,747.24

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Solution

The fourth proportional to 39,715.48, 54,864.30 and 31,747.24 is: 43,856.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,715.48 : 54,864.30 = 31,747.24 : x
  2. Step 2: Convert to fraction form
    39,715.48/54,864.30 = 31,747.24/x
  3. Step 3: Cross multiply
    39,715.48x = 54,864.30 × 31,747.24
  4. Step 4: Simplify right side
    39,715.48x = 1,741,790,099.53
  5. Step 5: Solve for x
    x = 1,741,790,099.53/39,715.48
  6. Step 6: Final answer
    x = 43,856.71

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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.