Home / 20,502.53-28,288.26-12,541.85

Finding the Fourth Proportional to 20,502.53, 28,288.26 and 12,541.85

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Solution

The fourth proportional to 20,502.53, 28,288.26 and 12,541.85 is: 17,304.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,502.53 : 28,288.26 = 12,541.85 : x
  2. Step 2: Convert to fraction form
    20,502.53/28,288.26 = 12,541.85/x
  3. Step 3: Cross multiply
    20,502.53x = 28,288.26 × 12,541.85
  4. Step 4: Simplify right side
    20,502.53x = 354,787,113.68
  5. Step 5: Solve for x
    x = 354,787,113.68/20,502.53
  6. Step 6: Final answer
    x = 17,304.55

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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.