Home / 20,305.16-30,455.72-6,261.38

Finding the Fourth Proportional to 20,305.16, 30,455.72 and 6,261.38

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Solution

The fourth proportional to 20,305.16, 30,455.72 and 6,261.38 is: 9,391.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,305.16 : 30,455.72 = 6,261.38 : x
  2. Step 2: Convert to fraction form
    20,305.16/30,455.72 = 6,261.38/x
  3. Step 3: Cross multiply
    20,305.16x = 30,455.72 × 6,261.38
  4. Step 4: Simplify right side
    20,305.16x = 190,694,722.15
  5. Step 5: Solve for x
    x = 190,694,722.15/20,305.16
  6. Step 6: Final answer
    x = 9,391.44

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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.