Home / 19,724.68-27,219.30-11,225.68

Finding the Fourth Proportional to 19,724.68, 27,219.30 and 11,225.68

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Solution

The fourth proportional to 19,724.68, 27,219.30 and 11,225.68 is: 15,491.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,724.68 : 27,219.30 = 11,225.68 : x
  2. Step 2: Convert to fraction form
    19,724.68/27,219.30 = 11,225.68/x
  3. Step 3: Cross multiply
    19,724.68x = 27,219.30 × 11,225.68
  4. Step 4: Simplify right side
    19,724.68x = 305,555,151.62
  5. Step 5: Solve for x
    x = 305,555,151.62/19,724.68
  6. Step 6: Final answer
    x = 15,491.01

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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.