Home / 20,391.15-30,589.53-6,352.20

Finding the Fourth Proportional to 20,391.15, 30,589.53 and 6,352.20

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Solution

The fourth proportional to 20,391.15, 30,589.53 and 6,352.20 is: 9,529.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391.15 : 30,589.53 = 6,352.20 : x
  2. Step 2: Convert to fraction form
    20,391.15/30,589.53 = 6,352.20/x
  3. Step 3: Cross multiply
    20,391.15x = 30,589.53 × 6,352.20
  4. Step 4: Simplify right side
    20,391.15x = 194,310,812.47
  5. Step 5: Solve for x
    x = 194,310,812.47/20,391.15
  6. Step 6: Final answer
    x = 9,529.17

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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.