Home / 39,073.80-58,610.82-12,781.08

Finding the Fourth Proportional to 39,073.80, 58,610.82 and 12,781.08

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Solution

The fourth proportional to 39,073.80, 58,610.82 and 12,781.08 is: 19,171.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,073.80 : 58,610.82 = 12,781.08 : x
  2. Step 2: Convert to fraction form
    39,073.80/58,610.82 = 12,781.08/x
  3. Step 3: Cross multiply
    39,073.80x = 58,610.82 × 12,781.08
  4. Step 4: Simplify right side
    39,073.80x = 749,109,579.29
  5. Step 5: Solve for x
    x = 749,109,579.29/39,073.80
  6. Step 6: Final answer
    x = 19,171.66

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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.