Home / 39,141.75-58,723.43-11,439.75

Finding the Fourth Proportional to 39,141.75, 58,723.43 and 11,439.75

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Solution

The fourth proportional to 39,141.75, 58,723.43 and 11,439.75 is: 17,162.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,141.75 : 58,723.43 = 11,439.75 : x
  2. Step 2: Convert to fraction form
    39,141.75/58,723.43 = 11,439.75/x
  3. Step 3: Cross multiply
    39,141.75x = 58,723.43 × 11,439.75
  4. Step 4: Simplify right side
    39,141.75x = 671,781,301.14
  5. Step 5: Solve for x
    x = 671,781,301.14/39,141.75
  6. Step 6: Final answer
    x = 17,162.78

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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.