Home / 39,429-54,421.26-26,002.68

Finding the Fourth Proportional to 39,429, 54,421.26 and 26,002.68

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Solution

The fourth proportional to 39,429, 54,421.26 and 26,002.68 is: 35,889.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,429 : 54,421.26 = 26,002.68 : x
  2. Step 2: Convert to fraction form
    39,429/54,421.26 = 26,002.68/x
  3. Step 3: Cross multiply
    39,429x = 54,421.26 × 26,002.68
  4. Step 4: Simplify right side
    39,429x = 1,415,098,608.98
  5. Step 5: Solve for x
    x = 1,415,098,608.98/39,429
  6. Step 6: Final answer
    x = 35,889.79

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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.