Home / 39,316.80-58,982.40-15,945.60

Finding the Fourth Proportional to 39,316.80, 58,982.40 and 15,945.60

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Solution

The fourth proportional to 39,316.80, 58,982.40 and 15,945.60 is: 23,921.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,316.80 : 58,982.40 = 15,945.60 : x
  2. Step 2: Convert to fraction form
    39,316.80/58,982.40 = 15,945.60/x
  3. Step 3: Cross multiply
    39,316.80x = 58,982.40 × 15,945.60
  4. Step 4: Simplify right side
    39,316.80x = 940,509,757.44
  5. Step 5: Solve for x
    x = 940,509,757.44/39,316.80
  6. Step 6: Final answer
    x = 23,921.32

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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.