Home / 39,910.52-55,078.97-22,005.47

Finding the Fourth Proportional to 39,910.52, 55,078.97 and 22,005.47

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Solution

The fourth proportional to 39,910.52, 55,078.97 and 22,005.47 is: 30,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,910.52 : 55,078.97 = 22,005.47 : x
  2. Step 2: Convert to fraction form
    39,910.52/55,078.97 = 22,005.47/x
  3. Step 3: Cross multiply
    39,910.52x = 55,078.97 × 22,005.47
  4. Step 4: Simplify right side
    39,910.52x = 1,212,038,621.97
  5. Step 5: Solve for x
    x = 1,212,038,621.97/39,910.52
  6. Step 6: Final answer
    x = 30,368.90

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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.