Home / 20,588.04-30,882.60-8,107.56

Finding the Fourth Proportional to 20,588.04, 30,882.60 and 8,107.56

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Solution

The fourth proportional to 20,588.04, 30,882.60 and 8,107.56 is: 12,161.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588.04 : 30,882.60 = 8,107.56 : x
  2. Step 2: Convert to fraction form
    20,588.04/30,882.60 = 8,107.56/x
  3. Step 3: Cross multiply
    20,588.04x = 30,882.60 × 8,107.56
  4. Step 4: Simplify right side
    20,588.04x = 250,382,532.46
  5. Step 5: Solve for x
    x = 250,382,532.46/20,588.04
  6. Step 6: Final answer
    x = 12,161.55

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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.