Home / 22,247.55-33,451.34-20,513.75

Finding the Fourth Proportional to 22,247.55, 33,451.34 and 20,513.75

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Solution

The fourth proportional to 22,247.55, 33,451.34 and 20,513.75 is: 30,844.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,247.55 : 33,451.34 = 20,513.75 : x
  2. Step 2: Convert to fraction form
    22,247.55/33,451.34 = 20,513.75/x
  3. Step 3: Cross multiply
    22,247.55x = 33,451.34 × 20,513.75
  4. Step 4: Simplify right side
    22,247.55x = 686,212,156.10
  5. Step 5: Solve for x
    x = 686,212,156.10/22,247.55
  6. Step 6: Final answer
    x = 30,844.39

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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.