Home / 20,251.12-30,385.32-9,860.08

Finding the Fourth Proportional to 20,251.12, 30,385.32 and 9,860.08

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Solution

The fourth proportional to 20,251.12, 30,385.32 and 9,860.08 is: 14,794.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.12 : 30,385.32 = 9,860.08 : x
  2. Step 2: Convert to fraction form
    20,251.12/30,385.32 = 9,860.08/x
  3. Step 3: Cross multiply
    20,251.12x = 30,385.32 × 9,860.08
  4. Step 4: Simplify right side
    20,251.12x = 299,601,686.03
  5. Step 5: Solve for x
    x = 299,601,686.03/20,251.12
  6. Step 6: Final answer
    x = 14,794.33

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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.