Home / 20,477.24-28,257.39-11,524.38

Finding the Fourth Proportional to 20,477.24, 28,257.39 and 11,524.38

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Solution

The fourth proportional to 20,477.24, 28,257.39 and 11,524.38 is: 15,902.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477.24 : 28,257.39 = 11,524.38 : x
  2. Step 2: Convert to fraction form
    20,477.24/28,257.39 = 11,524.38/x
  3. Step 3: Cross multiply
    20,477.24x = 28,257.39 × 11,524.38
  4. Step 4: Simplify right side
    20,477.24x = 325,648,900.17
  5. Step 5: Solve for x
    x = 325,648,900.17/20,477.24
  6. Step 6: Final answer
    x = 15,902.97

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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.