Home / 20,173.32-27,839.85-11,099.07

Finding the Fourth Proportional to 20,173.32, 27,839.85 and 11,099.07

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Solution

The fourth proportional to 20,173.32, 27,839.85 and 11,099.07 is: 15,317.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173.32 : 27,839.85 = 11,099.07 : x
  2. Step 2: Convert to fraction form
    20,173.32/27,839.85 = 11,099.07/x
  3. Step 3: Cross multiply
    20,173.32x = 27,839.85 × 11,099.07
  4. Step 4: Simplify right side
    20,173.32x = 308,996,443.94
  5. Step 5: Solve for x
    x = 308,996,443.94/20,173.32
  6. Step 6: Final answer
    x = 15,317.08

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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.