Home / 15,429-23,143.51-3,742.22

Finding the Fourth Proportional to 15,429, 23,143.51 and 3,742.22

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Solution

The fourth proportional to 15,429, 23,143.51 and 3,742.22 is: 5,613.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,429 : 23,143.51 = 3,742.22 : x
  2. Step 2: Convert to fraction form
    15,429/23,143.51 = 3,742.22/x
  3. Step 3: Cross multiply
    15,429x = 23,143.51 × 3,742.22
  4. Step 4: Simplify right side
    15,429x = 86,608,105.99
  5. Step 5: Solve for x
    x = 86,608,105.99/15,429
  6. Step 6: Final answer
    x = 5,613.33

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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.