Home / 20,117.24-27,757.36-11,617.56

Finding the Fourth Proportional to 20,117.24, 27,757.36 and 11,617.56

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Solution

The fourth proportional to 20,117.24, 27,757.36 and 11,617.56 is: 16,029.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117.24 : 27,757.36 = 11,617.56 : x
  2. Step 2: Convert to fraction form
    20,117.24/27,757.36 = 11,617.56/x
  3. Step 3: Cross multiply
    20,117.24x = 27,757.36 × 11,617.56
  4. Step 4: Simplify right side
    20,117.24x = 322,472,795.24
  5. Step 5: Solve for x
    x = 322,472,795.24/20,117.24
  6. Step 6: Final answer
    x = 16,029.67

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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.