Home / 39,768.76-59,649.30-20,039.48

Finding the Fourth Proportional to 39,768.76, 59,649.30 and 20,039.48

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Solution

The fourth proportional to 39,768.76, 59,649.30 and 20,039.48 is: 30,057.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,768.76 : 59,649.30 = 20,039.48 : x
  2. Step 2: Convert to fraction form
    39,768.76/59,649.30 = 20,039.48/x
  3. Step 3: Cross multiply
    39,768.76x = 59,649.30 × 20,039.48
  4. Step 4: Simplify right side
    39,768.76x = 1,195,340,954.36
  5. Step 5: Solve for x
    x = 1,195,340,954.36/39,768.76
  6. Step 6: Final answer
    x = 30,057.29

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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.