Home / 20,449.32-30,690.40-10,591.44

Finding the Fourth Proportional to 20,449.32, 30,690.40 and 10,591.44

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Solution

The fourth proportional to 20,449.32, 30,690.40 and 10,591.44 is: 15,895.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,449.32 : 30,690.40 = 10,591.44 : x
  2. Step 2: Convert to fraction form
    20,449.32/30,690.40 = 10,591.44/x
  3. Step 3: Cross multiply
    20,449.32x = 30,690.40 × 10,591.44
  4. Step 4: Simplify right side
    20,449.32x = 325,055,530.18
  5. Step 5: Solve for x
    x = 325,055,530.18/20,449.32
  6. Step 6: Final answer
    x = 15,895.66

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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.