Home / 22,130.45-33,195.55-12,764.39

Finding the Fourth Proportional to 22,130.45, 33,195.55 and 12,764.39

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Solution

The fourth proportional to 22,130.45, 33,195.55 and 12,764.39 is: 19,146.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,130.45 : 33,195.55 = 12,764.39 : x
  2. Step 2: Convert to fraction form
    22,130.45/33,195.55 = 12,764.39/x
  3. Step 3: Cross multiply
    22,130.45x = 33,195.55 × 12,764.39
  4. Step 4: Simplify right side
    22,130.45x = 423,720,997.54
  5. Step 5: Solve for x
    x = 423,720,997.54/22,130.45
  6. Step 6: Final answer
    x = 19,146.52

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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.