Home / 39,905.96-55,072.76-22,000.97

Finding the Fourth Proportional to 39,905.96, 55,072.76 and 22,000.97

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Solution

The fourth proportional to 39,905.96, 55,072.76 and 22,000.97 is: 30,362.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905.96 : 55,072.76 = 22,000.97 : x
  2. Step 2: Convert to fraction form
    39,905.96/55,072.76 = 22,000.97/x
  3. Step 3: Cross multiply
    39,905.96x = 55,072.76 × 22,000.97
  4. Step 4: Simplify right side
    39,905.96x = 1,211,654,168.25
  5. Step 5: Solve for x
    x = 1,211,654,168.25/39,905.96
  6. Step 6: Final answer
    x = 30,362.74

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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.