Home / 39,430.44-59,141.82-11,728.68

Finding the Fourth Proportional to 39,430.44, 59,141.82 and 11,728.68

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Solution

The fourth proportional to 39,430.44, 59,141.82 and 11,728.68 is: 17,591.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,430.44 : 59,141.82 = 11,728.68 : x
  2. Step 2: Convert to fraction form
    39,430.44/59,141.82 = 11,728.68/x
  3. Step 3: Cross multiply
    39,430.44x = 59,141.82 × 11,728.68
  4. Step 4: Simplify right side
    39,430.44x = 693,655,481.40
  5. Step 5: Solve for x
    x = 693,655,481.40/39,430.44
  6. Step 6: Final answer
    x = 17,591.88

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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.