Home / 20,794.16-31,199.28-9,109.04

Finding the Fourth Proportional to 20,794.16, 31,199.28 and 9,109.04

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Solution

The fourth proportional to 20,794.16, 31,199.28 and 9,109.04 is: 13,667.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794.16 : 31,199.28 = 9,109.04 : x
  2. Step 2: Convert to fraction form
    20,794.16/31,199.28 = 9,109.04/x
  3. Step 3: Cross multiply
    20,794.16x = 31,199.28 × 9,109.04
  4. Step 4: Simplify right side
    20,794.16x = 284,195,489.49
  5. Step 5: Solve for x
    x = 284,195,489.49/20,794.16
  6. Step 6: Final answer
    x = 13,667.08

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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.