Home / 20,238.98-27,926.91-11,285.19

Finding the Fourth Proportional to 20,238.98, 27,926.91 and 11,285.19

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Solution

The fourth proportional to 20,238.98, 27,926.91 and 11,285.19 is: 15,571.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.98 : 27,926.91 = 11,285.19 : x
  2. Step 2: Convert to fraction form
    20,238.98/27,926.91 = 11,285.19/x
  3. Step 3: Cross multiply
    20,238.98x = 27,926.91 × 11,285.19
  4. Step 4: Simplify right side
    20,238.98x = 315,160,485.46
  5. Step 5: Solve for x
    x = 315,160,485.46/20,238.98
  6. Step 6: Final answer
    x = 15,571.96

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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.