Home / 39,091.05-58,631.10-12,792.39

Finding the Fourth Proportional to 39,091.05, 58,631.10 and 12,792.39

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Solution

The fourth proportional to 39,091.05, 58,631.10 and 12,792.39 is: 19,186.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,091.05 : 58,631.10 = 12,792.39 : x
  2. Step 2: Convert to fraction form
    39,091.05/58,631.10 = 12,792.39/x
  3. Step 3: Cross multiply
    39,091.05x = 58,631.10 × 12,792.39
  4. Step 4: Simplify right side
    39,091.05x = 750,031,897.33
  5. Step 5: Solve for x
    x = 750,031,897.33/39,091.05
  6. Step 6: Final answer
    x = 19,186.79

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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.