Home / 39,869.42-59,809.59-11,791.68

Finding the Fourth Proportional to 39,869.42, 59,809.59 and 11,791.68

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Solution

The fourth proportional to 39,869.42, 59,809.59 and 11,791.68 is: 17,689.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,869.42 : 59,809.59 = 11,791.68 : x
  2. Step 2: Convert to fraction form
    39,869.42/59,809.59 = 11,791.68/x
  3. Step 3: Cross multiply
    39,869.42x = 59,809.59 × 11,791.68
  4. Step 4: Simplify right side
    39,869.42x = 705,255,321.93
  5. Step 5: Solve for x
    x = 705,255,321.93/39,869.42
  6. Step 6: Final answer
    x = 17,689.13

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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.