Home / 39,807.33-54,932.74-21,902.19

Finding the Fourth Proportional to 39,807.33, 54,932.74 and 21,902.19

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Solution

The fourth proportional to 39,807.33, 54,932.74 and 21,902.19 is: 30,224.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,807.33 : 54,932.74 = 21,902.19 : x
  2. Step 2: Convert to fraction form
    39,807.33/54,932.74 = 21,902.19/x
  3. Step 3: Cross multiply
    39,807.33x = 54,932.74 × 21,902.19
  4. Step 4: Simplify right side
    39,807.33x = 1,203,147,308.70
  5. Step 5: Solve for x
    x = 1,203,147,308.70/39,807.33
  6. Step 6: Final answer
    x = 30,224.27

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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.