Home / 20,211.06-27,891.27-11,258.10

Finding the Fourth Proportional to 20,211.06, 27,891.27 and 11,258.10

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Solution

The fourth proportional to 20,211.06, 27,891.27 and 11,258.10 is: 15,536.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.06 : 27,891.27 = 11,258.10 : x
  2. Step 2: Convert to fraction form
    20,211.06/27,891.27 = 11,258.10/x
  3. Step 3: Cross multiply
    20,211.06x = 27,891.27 × 11,258.10
  4. Step 4: Simplify right side
    20,211.06x = 314,002,706.79
  5. Step 5: Solve for x
    x = 314,002,706.79/20,211.06
  6. Step 6: Final answer
    x = 15,536.18

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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.