Home / 20,982.84-28,957.14-11,552.28

Finding the Fourth Proportional to 20,982.84, 28,957.14 and 11,552.28

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Solution

The fourth proportional to 20,982.84, 28,957.14 and 11,552.28 is: 15,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982.84 : 28,957.14 = 11,552.28 : x
  2. Step 2: Convert to fraction form
    20,982.84/28,957.14 = 11,552.28/x
  3. Step 3: Cross multiply
    20,982.84x = 28,957.14 × 11,552.28
  4. Step 4: Simplify right side
    20,982.84x = 334,520,989.28
  5. Step 5: Solve for x
    x = 334,520,989.28/20,982.84
  6. Step 6: Final answer
    x = 15,942.60

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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.