Home / 39,902.14-55,062.48-21,996.22

Finding the Fourth Proportional to 39,902.14, 55,062.48 and 21,996.22

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Solution

The fourth proportional to 39,902.14, 55,062.48 and 21,996.22 is: 30,353.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,902.14 : 55,062.48 = 21,996.22 : x
  2. Step 2: Convert to fraction form
    39,902.14/55,062.48 = 21,996.22/x
  3. Step 3: Cross multiply
    39,902.14x = 55,062.48 × 21,996.22
  4. Step 4: Simplify right side
    39,902.14x = 1,211,166,423.83
  5. Step 5: Solve for x
    x = 1,211,166,423.83/39,902.14
  6. Step 6: Final answer
    x = 30,353.42

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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.