Home / 20,378.44-30,566.94-5,587.12

Finding the Fourth Proportional to 20,378.44, 30,566.94 and 5,587.12

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Solution

The fourth proportional to 20,378.44, 30,566.94 and 5,587.12 is: 8,380.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,378.44 : 30,566.94 = 5,587.12 : x
  2. Step 2: Convert to fraction form
    20,378.44/30,566.94 = 5,587.12/x
  3. Step 3: Cross multiply
    20,378.44x = 30,566.94 × 5,587.12
  4. Step 4: Simplify right side
    20,378.44x = 170,781,161.81
  5. Step 5: Solve for x
    x = 170,781,161.81/20,378.44
  6. Step 6: Final answer
    x = 8,380.48

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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.