Home / 33,107.78-45,688.68-18,000.39

Finding the Fourth Proportional to 33,107.78, 45,688.68 and 18,000.39

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Solution

The fourth proportional to 33,107.78, 45,688.68 and 18,000.39 is: 24,840.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,107.78 : 45,688.68 = 18,000.39 : x
  2. Step 2: Convert to fraction form
    33,107.78/45,688.68 = 18,000.39/x
  3. Step 3: Cross multiply
    33,107.78x = 45,688.68 × 18,000.39
  4. Step 4: Simplify right side
    33,107.78x = 822,414,058.59
  5. Step 5: Solve for x
    x = 822,414,058.59/33,107.78
  6. Step 6: Final answer
    x = 24,840.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.