Home / 22,400.72-33,621.88-11,315.20

Finding the Fourth Proportional to 22,400.72, 33,621.88 and 11,315.20

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Solution

The fourth proportional to 22,400.72, 33,621.88 and 11,315.20 is: 16,983.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,400.72 : 33,621.88 = 11,315.20 : x
  2. Step 2: Convert to fraction form
    22,400.72/33,621.88 = 11,315.20/x
  3. Step 3: Cross multiply
    22,400.72x = 33,621.88 × 11,315.20
  4. Step 4: Simplify right side
    22,400.72x = 380,438,296.58
  5. Step 5: Solve for x
    x = 380,438,296.58/22,400.72
  6. Step 6: Final answer
    x = 16,983.31

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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.