Home / 20,983.82-28,956.63-11,552.18

Finding the Fourth Proportional to 20,983.82, 28,956.63 and 11,552.18

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Solution

The fourth proportional to 20,983.82, 28,956.63 and 11,552.18 is: 15,941.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,983.82 : 28,956.63 = 11,552.18 : x
  2. Step 2: Convert to fraction form
    20,983.82/28,956.63 = 11,552.18/x
  3. Step 3: Cross multiply
    20,983.82x = 28,956.63 × 11,552.18
  4. Step 4: Simplify right side
    20,983.82x = 334,512,201.95
  5. Step 5: Solve for x
    x = 334,512,201.95/20,983.82
  6. Step 6: Final answer
    x = 15,941.43

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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.