Home / 20,846.94-28,773.24-13,291.53

Finding the Fourth Proportional to 20,846.94, 28,773.24 and 13,291.53

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Solution

The fourth proportional to 20,846.94, 28,773.24 and 13,291.53 is: 18,345.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,846.94 : 28,773.24 = 13,291.53 : x
  2. Step 2: Convert to fraction form
    20,846.94/28,773.24 = 13,291.53/x
  3. Step 3: Cross multiply
    20,846.94x = 28,773.24 × 13,291.53
  4. Step 4: Simplify right side
    20,846.94x = 382,440,310.72
  5. Step 5: Solve for x
    x = 382,440,310.72/20,846.94
  6. Step 6: Final answer
    x = 18,345.16

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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.