Home / 20,652.38-28,502.71-12,268.88

Finding the Fourth Proportional to 20,652.38, 28,502.71 and 12,268.88

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Solution

The fourth proportional to 20,652.38, 28,502.71 and 12,268.88 is: 16,932.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,652.38 : 28,502.71 = 12,268.88 : x
  2. Step 2: Convert to fraction form
    20,652.38/28,502.71 = 12,268.88/x
  3. Step 3: Cross multiply
    20,652.38x = 28,502.71 × 12,268.88
  4. Step 4: Simplify right side
    20,652.38x = 349,696,155.48
  5. Step 5: Solve for x
    x = 349,696,155.48/20,652.38
  6. Step 6: Final answer
    x = 16,932.49

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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.