Home / 22,231.20-33,298.20-19,315.20

Finding the Fourth Proportional to 22,231.20, 33,298.20 and 19,315.20

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Solution

The fourth proportional to 22,231.20, 33,298.20 and 19,315.20 is: 28,930.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,231.20 : 33,298.20 = 19,315.20 : x
  2. Step 2: Convert to fraction form
    22,231.20/33,298.20 = 19,315.20/x
  3. Step 3: Cross multiply
    22,231.20x = 33,298.20 × 19,315.20
  4. Step 4: Simplify right side
    22,231.20x = 643,161,392.64
  5. Step 5: Solve for x
    x = 643,161,392.64/22,231.20
  6. Step 6: Final answer
    x = 28,930.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.