Home / 22,115.72-33,166.70-7,321.32

Finding the Fourth Proportional to 22,115.72, 33,166.70 and 7,321.32

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Solution

The fourth proportional to 22,115.72, 33,166.70 and 7,321.32 is: 10,979.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,115.72 : 33,166.70 = 7,321.32 : x
  2. Step 2: Convert to fraction form
    22,115.72/33,166.70 = 7,321.32/x
  3. Step 3: Cross multiply
    22,115.72x = 33,166.70 × 7,321.32
  4. Step 4: Simplify right side
    22,115.72x = 242,824,024.04
  5. Step 5: Solve for x
    x = 242,824,024.04/22,115.72
  6. Step 6: Final answer
    x = 10,979.70

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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.