Home / 15,827.12-23,719.44-12,321.44

Finding the Fourth Proportional to 15,827.12, 23,719.44 and 12,321.44

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Solution

The fourth proportional to 15,827.12, 23,719.44 and 12,321.44 is: 18,465.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,827.12 : 23,719.44 = 12,321.44 : x
  2. Step 2: Convert to fraction form
    15,827.12/23,719.44 = 12,321.44/x
  3. Step 3: Cross multiply
    15,827.12x = 23,719.44 × 12,321.44
  4. Step 4: Simplify right side
    15,827.12x = 292,257,656.79
  5. Step 5: Solve for x
    x = 292,257,656.79/15,827.12
  6. Step 6: Final answer
    x = 18,465.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.