Home / 20,360.74-30,539.65-6,320.43

Finding the Fourth Proportional to 20,360.74, 30,539.65 and 6,320.43

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Solution

The fourth proportional to 20,360.74, 30,539.65 and 6,320.43 is: 9,480.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.74 : 30,539.65 = 6,320.43 : x
  2. Step 2: Convert to fraction form
    20,360.74/30,539.65 = 6,320.43/x
  3. Step 3: Cross multiply
    20,360.74x = 30,539.65 × 6,320.43
  4. Step 4: Simplify right side
    20,360.74x = 193,023,720.05
  5. Step 5: Solve for x
    x = 193,023,720.05/20,360.74
  6. Step 6: Final answer
    x = 9,480.19

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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.