Home / 30,489.24-42,290.73-29,680.44

Finding the Fourth Proportional to 30,489.24, 42,290.73 and 29,680.44

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Solution

The fourth proportional to 30,489.24, 42,290.73 and 29,680.44 is: 41,168.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,489.24 : 42,290.73 = 29,680.44 : x
  2. Step 2: Convert to fraction form
    30,489.24/42,290.73 = 29,680.44/x
  3. Step 3: Cross multiply
    30,489.24x = 42,290.73 × 29,680.44
  4. Step 4: Simplify right side
    30,489.24x = 1,255,207,474.32
  5. Step 5: Solve for x
    x = 1,255,207,474.32/30,489.24
  6. Step 6: Final answer
    x = 41,168.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.