Home / 39,390.82-59,112.49-20,432.93

Finding the Fourth Proportional to 39,390.82, 59,112.49 and 20,432.93

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Solution

The fourth proportional to 39,390.82, 59,112.49 and 20,432.93 is: 30,663.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,390.82 : 59,112.49 = 20,432.93 : x
  2. Step 2: Convert to fraction form
    39,390.82/59,112.49 = 20,432.93/x
  3. Step 3: Cross multiply
    39,390.82x = 59,112.49 × 20,432.93
  4. Step 4: Simplify right side
    39,390.82x = 1,207,841,370.30
  5. Step 5: Solve for x
    x = 1,207,841,370.30/39,390.82
  6. Step 6: Final answer
    x = 30,663.02

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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.