Home / 19,724.20-27,217.86-11,339.08

Finding the Fourth Proportional to 19,724.20, 27,217.86 and 11,339.08

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Solution

The fourth proportional to 19,724.20, 27,217.86 and 11,339.08 is: 15,647.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,724.20 : 27,217.86 = 11,339.08 : x
  2. Step 2: Convert to fraction form
    19,724.20/27,217.86 = 11,339.08/x
  3. Step 3: Cross multiply
    19,724.20x = 27,217.86 × 11,339.08
  4. Step 4: Simplify right side
    19,724.20x = 308,625,491.97
  5. Step 5: Solve for x
    x = 308,625,491.97/19,724.20
  6. Step 6: Final answer
    x = 15,647.05

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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.