Home / 22,089.78-33,141.20-12,736.50

Finding the Fourth Proportional to 22,089.78, 33,141.20 and 12,736.50

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Solution

The fourth proportional to 22,089.78, 33,141.20 and 12,736.50 is: 19,108.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,089.78 : 33,141.20 = 12,736.50 : x
  2. Step 2: Convert to fraction form
    22,089.78/33,141.20 = 12,736.50/x
  3. Step 3: Cross multiply
    22,089.78x = 33,141.20 × 12,736.50
  4. Step 4: Simplify right side
    22,089.78x = 422,102,893.80
  5. Step 5: Solve for x
    x = 422,102,893.80/22,089.78
  6. Step 6: Final answer
    x = 19,108.52

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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.