Home / 20,529.05-28,330.16-11,097.61

Finding the Fourth Proportional to 20,529.05, 28,330.16 and 11,097.61

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Solution

The fourth proportional to 20,529.05, 28,330.16 and 11,097.61 is: 15,314.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.05 : 28,330.16 = 11,097.61 : x
  2. Step 2: Convert to fraction form
    20,529.05/28,330.16 = 11,097.61/x
  3. Step 3: Cross multiply
    20,529.05x = 28,330.16 × 11,097.61
  4. Step 4: Simplify right side
    20,529.05x = 314,396,940.60
  5. Step 5: Solve for x
    x = 314,396,940.60/20,529.05
  6. Step 6: Final answer
    x = 15,314.74

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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.