Home / 39,489.18-54,494.10-21,583.68

Finding the Fourth Proportional to 39,489.18, 54,494.10 and 21,583.68

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Solution

The fourth proportional to 39,489.18, 54,494.10 and 21,583.68 is: 29,784.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,489.18 : 54,494.10 = 21,583.68 : x
  2. Step 2: Convert to fraction form
    39,489.18/54,494.10 = 21,583.68/x
  3. Step 3: Cross multiply
    39,489.18x = 54,494.10 × 21,583.68
  4. Step 4: Simplify right side
    39,489.18x = 1,176,183,216.29
  5. Step 5: Solve for x
    x = 1,176,183,216.29/39,489.18
  6. Step 6: Final answer
    x = 29,784.95

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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.