Home / 20,119.42-27,766-11,623.10

Finding the Fourth Proportional to 20,119.42, 27,766 and 11,623.10

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Solution

The fourth proportional to 20,119.42, 27,766 and 11,623.10 is: 16,040.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.42 : 27,766 = 11,623.10 : x
  2. Step 2: Convert to fraction form
    20,119.42/27,766 = 11,623.10/x
  3. Step 3: Cross multiply
    20,119.42x = 27,766 × 11,623.10
  4. Step 4: Simplify right side
    20,119.42x = 322,726,994.60
  5. Step 5: Solve for x
    x = 322,726,994.60/20,119.42
  6. Step 6: Final answer
    x = 16,040.57

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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.