Home / 20,074.37-27,700.38-11,119.65

Finding the Fourth Proportional to 20,074.37, 27,700.38 and 11,119.65

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Solution

The fourth proportional to 20,074.37, 27,700.38 and 11,119.65 is: 15,343.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.37 : 27,700.38 = 11,119.65 : x
  2. Step 2: Convert to fraction form
    20,074.37/27,700.38 = 11,119.65/x
  3. Step 3: Cross multiply
    20,074.37x = 27,700.38 × 11,119.65
  4. Step 4: Simplify right side
    20,074.37x = 308,018,530.47
  5. Step 5: Solve for x
    x = 308,018,530.47/20,074.37
  6. Step 6: Final answer
    x = 15,343.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.