Home / 39,585.50-54,625.14-21,677.61

Finding the Fourth Proportional to 39,585.50, 54,625.14 and 21,677.61

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Solution

The fourth proportional to 39,585.50, 54,625.14 and 21,677.61 is: 29,913.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,585.50 : 54,625.14 = 21,677.61 : x
  2. Step 2: Convert to fraction form
    39,585.50/54,625.14 = 21,677.61/x
  3. Step 3: Cross multiply
    39,585.50x = 54,625.14 × 21,677.61
  4. Step 4: Simplify right side
    39,585.50x = 1,184,142,481.12
  5. Step 5: Solve for x
    x = 1,184,142,481.12/39,585.50
  6. Step 6: Final answer
    x = 29,913.54

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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.