Home / 39,659.56-54,730.96-21,753.52

Finding the Fourth Proportional to 39,659.56, 54,730.96 and 21,753.52

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Solution

The fourth proportional to 39,659.56, 54,730.96 and 21,753.52 is: 30,020.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,659.56 : 54,730.96 = 21,753.52 : x
  2. Step 2: Convert to fraction form
    39,659.56/54,730.96 = 21,753.52/x
  3. Step 3: Cross multiply
    39,659.56x = 54,730.96 × 21,753.52
  4. Step 4: Simplify right side
    39,659.56x = 1,190,591,032.98
  5. Step 5: Solve for x
    x = 1,190,591,032.98/39,659.56
  6. Step 6: Final answer
    x = 30,020.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.