Home / 20,019.13-27,626.39-11,187.13

Finding the Fourth Proportional to 20,019.13, 27,626.39 and 11,187.13

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Solution

The fourth proportional to 20,019.13, 27,626.39 and 11,187.13 is: 15,438.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019.13 : 27,626.39 = 11,187.13 : x
  2. Step 2: Convert to fraction form
    20,019.13/27,626.39 = 11,187.13/x
  3. Step 3: Cross multiply
    20,019.13x = 27,626.39 × 11,187.13
  4. Step 4: Simplify right side
    20,019.13x = 309,060,016.36
  5. Step 5: Solve for x
    x = 309,060,016.36/20,019.13
  6. Step 6: Final answer
    x = 15,438.23

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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.