Home / 20,168.04-30,240.92-9,640.70

Finding the Fourth Proportional to 20,168.04, 30,240.92 and 9,640.70

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Solution

The fourth proportional to 20,168.04, 30,240.92 and 9,640.70 is: 14,455.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.04 : 30,240.92 = 9,640.70 : x
  2. Step 2: Convert to fraction form
    20,168.04/30,240.92 = 9,640.70/x
  3. Step 3: Cross multiply
    20,168.04x = 30,240.92 × 9,640.70
  4. Step 4: Simplify right side
    20,168.04x = 291,543,637.44
  5. Step 5: Solve for x
    x = 291,543,637.44/20,168.04
  6. Step 6: Final answer
    x = 14,455.72

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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.