Home / 20,974.84-28,944.18-11,541.58

Finding the Fourth Proportional to 20,974.84, 28,944.18 and 11,541.58

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Solution

The fourth proportional to 20,974.84, 28,944.18 and 11,541.58 is: 15,926.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,974.84 : 28,944.18 = 11,541.58 : x
  2. Step 2: Convert to fraction form
    20,974.84/28,944.18 = 11,541.58/x
  3. Step 3: Cross multiply
    20,974.84x = 28,944.18 × 11,541.58
  4. Step 4: Simplify right side
    20,974.84x = 334,061,569.00
  5. Step 5: Solve for x
    x = 334,061,569.00/20,974.84
  6. Step 6: Final answer
    x = 15,926.78

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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.