Home / 20,430.75-30,589.04-11,037.12

Finding the Fourth Proportional to 20,430.75, 30,589.04 and 11,037.12

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Solution

The fourth proportional to 20,430.75, 30,589.04 and 11,037.12 is: 16,524.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,430.75 : 30,589.04 = 11,037.12 : x
  2. Step 2: Convert to fraction form
    20,430.75/30,589.04 = 11,037.12/x
  3. Step 3: Cross multiply
    20,430.75x = 30,589.04 × 11,037.12
  4. Step 4: Simplify right side
    20,430.75x = 337,614,831.65
  5. Step 5: Solve for x
    x = 337,614,831.65/20,430.75
  6. Step 6: Final answer
    x = 16,524.83

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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.