Home / 20,983.28-28,957.50-11,552.42

Finding the Fourth Proportional to 20,983.28, 28,957.50 and 11,552.42

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Solution

The fourth proportional to 20,983.28, 28,957.50 and 11,552.42 is: 15,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,983.28 : 28,957.50 = 11,552.42 : x
  2. Step 2: Convert to fraction form
    20,983.28/28,957.50 = 11,552.42/x
  3. Step 3: Cross multiply
    20,983.28x = 28,957.50 × 11,552.42
  4. Step 4: Simplify right side
    20,983.28x = 334,529,202.15
  5. Step 5: Solve for x
    x = 334,529,202.15/20,983.28
  6. Step 6: Final answer
    x = 15,942.66

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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.