Home / 34,857.12-52,249.92-13,788.72

Finding the Fourth Proportional to 34,857.12, 52,249.92 and 13,788.72

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Solution

The fourth proportional to 34,857.12, 52,249.92 and 13,788.72 is: 20,668.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,857.12 : 52,249.92 = 13,788.72 : x
  2. Step 2: Convert to fraction form
    34,857.12/52,249.92 = 13,788.72/x
  3. Step 3: Cross multiply
    34,857.12x = 52,249.92 × 13,788.72
  4. Step 4: Simplify right side
    34,857.12x = 720,459,516.90
  5. Step 5: Solve for x
    x = 720,459,516.90/34,857.12
  6. Step 6: Final answer
    x = 20,668.93

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1.5x scale

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.