Home / 20,948.34-28,907.97-11,516.84

Finding the Fourth Proportional to 20,948.34, 28,907.97 and 11,516.84

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Solution

The fourth proportional to 20,948.34, 28,907.97 and 11,516.84 is: 15,892.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,948.34 : 28,907.97 = 11,516.84 : x
  2. Step 2: Convert to fraction form
    20,948.34/28,907.97 = 11,516.84/x
  3. Step 3: Cross multiply
    20,948.34x = 28,907.97 × 11,516.84
  4. Step 4: Simplify right side
    20,948.34x = 332,928,465.21
  5. Step 5: Solve for x
    x = 332,928,465.21/20,948.34
  6. Step 6: Final answer
    x = 15,892.83

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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.