Home / 20,443.88-28,211.14-11,492.73

Finding the Fourth Proportional to 20,443.88, 28,211.14 and 11,492.73

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Solution

The fourth proportional to 20,443.88, 28,211.14 and 11,492.73 is: 15,859.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,443.88 : 28,211.14 = 11,492.73 : x
  2. Step 2: Convert to fraction form
    20,443.88/28,211.14 = 11,492.73/x
  3. Step 3: Cross multiply
    20,443.88x = 28,211.14 × 11,492.73
  4. Step 4: Simplify right side
    20,443.88x = 324,223,015.01
  5. Step 5: Solve for x
    x = 324,223,015.01/20,443.88
  6. Step 6: Final answer
    x = 15,859.17

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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.