Home / 19,722.98-27,217.86-11,225.75

Finding the Fourth Proportional to 19,722.98, 27,217.86 and 11,225.75

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Solution

The fourth proportional to 19,722.98, 27,217.86 and 11,225.75 is: 15,491.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,722.98 : 27,217.86 = 11,225.75 : x
  2. Step 2: Convert to fraction form
    19,722.98/27,217.86 = 11,225.75/x
  3. Step 3: Cross multiply
    19,722.98x = 27,217.86 × 11,225.75
  4. Step 4: Simplify right side
    19,722.98x = 305,540,755.81
  5. Step 5: Solve for x
    x = 305,540,755.81/19,722.98
  6. Step 6: Final answer
    x = 15,491.62

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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.