Home / 39,906.81-55,071.09-22,002.57

Finding the Fourth Proportional to 39,906.81, 55,071.09 and 22,002.57

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Solution

The fourth proportional to 39,906.81, 55,071.09 and 22,002.57 is: 30,363.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,906.81 : 55,071.09 = 22,002.57 : x
  2. Step 2: Convert to fraction form
    39,906.81/55,071.09 = 22,002.57/x
  3. Step 3: Cross multiply
    39,906.81x = 55,071.09 × 22,002.57
  4. Step 4: Simplify right side
    39,906.81x = 1,211,705,512.70
  5. Step 5: Solve for x
    x = 1,211,705,512.70/39,906.81
  6. Step 6: Final answer
    x = 30,363.38

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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.