Home / 39,929.59-59,906.87-11,849.79

Finding the Fourth Proportional to 39,929.59, 59,906.87 and 11,849.79

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Solution

The fourth proportional to 39,929.59, 59,906.87 and 11,849.79 is: 17,778.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,929.59 : 59,906.87 = 11,849.79 : x
  2. Step 2: Convert to fraction form
    39,929.59/59,906.87 = 11,849.79/x
  3. Step 3: Cross multiply
    39,929.59x = 59,906.87 × 11,849.79
  4. Step 4: Simplify right side
    39,929.59x = 709,883,829.06
  5. Step 5: Solve for x
    x = 709,883,829.06/39,929.59
  6. Step 6: Final answer
    x = 17,778.39

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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.