Home / 20,176.24-27,840.21-11,223.85

Finding the Fourth Proportional to 20,176.24, 27,840.21 and 11,223.85

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Solution

The fourth proportional to 20,176.24, 27,840.21 and 11,223.85 is: 15,487.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.24 : 27,840.21 = 11,223.85 : x
  2. Step 2: Convert to fraction form
    20,176.24/27,840.21 = 11,223.85/x
  3. Step 3: Cross multiply
    20,176.24x = 27,840.21 × 11,223.85
  4. Step 4: Simplify right side
    20,176.24x = 312,474,341.01
  5. Step 5: Solve for x
    x = 312,474,341.01/20,176.24
  6. Step 6: Final answer
    x = 15,487.24

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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.