Home / 20,074.68-30,085.86-11,189.65

Finding the Fourth Proportional to 20,074.68, 30,085.86 and 11,189.65

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Solution

The fourth proportional to 20,074.68, 30,085.86 and 11,189.65 is: 16,769.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.68 : 30,085.86 = 11,189.65 : x
  2. Step 2: Convert to fraction form
    20,074.68/30,085.86 = 11,189.65/x
  3. Step 3: Cross multiply
    20,074.68x = 30,085.86 × 11,189.65
  4. Step 4: Simplify right side
    20,074.68x = 336,650,280.96
  5. Step 5: Solve for x
    x = 336,650,280.96/20,074.68
  6. Step 6: Final answer
    x = 16,769.89

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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.