Home / 39,906.45-55,071.27-22,002.12

Finding the Fourth Proportional to 39,906.45, 55,071.27 and 22,002.12

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Solution

The fourth proportional to 39,906.45, 55,071.27 and 22,002.12 is: 30,363.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,906.45 : 55,071.27 = 22,002.12 : x
  2. Step 2: Convert to fraction form
    39,906.45/55,071.27 = 22,002.12/x
  3. Step 3: Cross multiply
    39,906.45x = 55,071.27 × 22,002.12
  4. Step 4: Simplify right side
    39,906.45x = 1,211,684,691.09
  5. Step 5: Solve for x
    x = 1,211,684,691.09/39,906.45
  6. Step 6: Final answer
    x = 30,363.13

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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.