Home / 39,596.22-54,642.79-21,691.86

Finding the Fourth Proportional to 39,596.22, 54,642.79 and 21,691.86

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Solution

The fourth proportional to 39,596.22, 54,642.79 and 21,691.86 is: 29,934.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,596.22 : 54,642.79 = 21,691.86 : x
  2. Step 2: Convert to fraction form
    39,596.22/54,642.79 = 21,691.86/x
  3. Step 3: Cross multiply
    39,596.22x = 54,642.79 × 21,691.86
  4. Step 4: Simplify right side
    39,596.22x = 1,185,303,572.89
  5. Step 5: Solve for x
    x = 1,185,303,572.89/39,596.22
  6. Step 6: Final answer
    x = 29,934.77

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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.