Home / 20,107.92-30,121.57-9,588.15

Finding the Fourth Proportional to 20,107.92, 30,121.57 and 9,588.15

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Solution

The fourth proportional to 20,107.92, 30,121.57 and 9,588.15 is: 14,363.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.92 : 30,121.57 = 9,588.15 : x
  2. Step 2: Convert to fraction form
    20,107.92/30,121.57 = 9,588.15/x
  3. Step 3: Cross multiply
    20,107.92x = 30,121.57 × 9,588.15
  4. Step 4: Simplify right side
    20,107.92x = 288,810,131.40
  5. Step 5: Solve for x
    x = 288,810,131.40/20,107.92
  6. Step 6: Final answer
    x = 14,363.00

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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.