Home / 25,943.10-38,900.70-8,170.44

Finding the Fourth Proportional to 25,943.10, 38,900.70 and 8,170.44

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Solution

The fourth proportional to 25,943.10, 38,900.70 and 8,170.44 is: 12,251.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,943.10 : 38,900.70 = 8,170.44 : x
  2. Step 2: Convert to fraction form
    25,943.10/38,900.70 = 8,170.44/x
  3. Step 3: Cross multiply
    25,943.10x = 38,900.70 × 8,170.44
  4. Step 4: Simplify right side
    25,943.10x = 317,835,835.31
  5. Step 5: Solve for x
    x = 317,835,835.31/25,943.10
  6. Step 6: Final answer
    x = 12,251.27

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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.