Home / 39,892.78-55,042.34-22,661.30

Finding the Fourth Proportional to 39,892.78, 55,042.34 and 22,661.30

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Solution

The fourth proportional to 39,892.78, 55,042.34 and 22,661.30 is: 31,267.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,892.78 : 55,042.34 = 22,661.30 : x
  2. Step 2: Convert to fraction form
    39,892.78/55,042.34 = 22,661.30/x
  3. Step 3: Cross multiply
    39,892.78x = 55,042.34 × 22,661.30
  4. Step 4: Simplify right side
    39,892.78x = 1,247,330,979.44
  5. Step 5: Solve for x
    x = 1,247,330,979.44/39,892.78
  6. Step 6: Final answer
    x = 31,267.09

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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.