Home / 39,849.18-59,781.64-11,769.72

Finding the Fourth Proportional to 39,849.18, 59,781.64 and 11,769.72

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Solution

The fourth proportional to 39,849.18, 59,781.64 and 11,769.72 is: 17,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,849.18 : 59,781.64 = 11,769.72 : x
  2. Step 2: Convert to fraction form
    39,849.18/59,781.64 = 11,769.72/x
  3. Step 3: Cross multiply
    39,849.18x = 59,781.64 × 11,769.72
  4. Step 4: Simplify right side
    39,849.18x = 703,613,163.94
  5. Step 5: Solve for x
    x = 703,613,163.94/39,849.18
  6. Step 6: Final answer
    x = 17,656.90

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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.