Home / 22,469.10-33,715.80-9,991.05

Finding the Fourth Proportional to 22,469.10, 33,715.80 and 9,991.05

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Solution

The fourth proportional to 22,469.10, 33,715.80 and 9,991.05 is: 14,991.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,469.10 : 33,715.80 = 9,991.05 : x
  2. Step 2: Convert to fraction form
    22,469.10/33,715.80 = 9,991.05/x
  3. Step 3: Cross multiply
    22,469.10x = 33,715.80 × 9,991.05
  4. Step 4: Simplify right side
    22,469.10x = 336,856,243.59
  5. Step 5: Solve for x
    x = 336,856,243.59/22,469.10
  6. Step 6: Final answer
    x = 14,991.98

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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.