Home / 20,608.30-28,439.58-11,176.84

Finding the Fourth Proportional to 20,608.30, 28,439.58 and 11,176.84

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Solution

The fourth proportional to 20,608.30, 28,439.58 and 11,176.84 is: 15,424.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.30 : 28,439.58 = 11,176.84 : x
  2. Step 2: Convert to fraction form
    20,608.30/28,439.58 = 11,176.84/x
  3. Step 3: Cross multiply
    20,608.30x = 28,439.58 × 11,176.84
  4. Step 4: Simplify right side
    20,608.30x = 317,864,635.33
  5. Step 5: Solve for x
    x = 317,864,635.33/20,608.30
  6. Step 6: Final answer
    x = 15,424.11

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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.