Home / 20,247.84-27,940.14-11,295.72

Finding the Fourth Proportional to 20,247.84, 27,940.14 and 11,295.72

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Solution

The fourth proportional to 20,247.84, 27,940.14 and 11,295.72 is: 15,587.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247.84 : 27,940.14 = 11,295.72 : x
  2. Step 2: Convert to fraction form
    20,247.84/27,940.14 = 11,295.72/x
  3. Step 3: Cross multiply
    20,247.84x = 27,940.14 × 11,295.72
  4. Step 4: Simplify right side
    20,247.84x = 315,603,998.20
  5. Step 5: Solve for x
    x = 315,603,998.20/20,247.84
  6. Step 6: Final answer
    x = 15,587.05

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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.