Home / 39,722.03-54,816.23-21,816.98

Finding the Fourth Proportional to 39,722.03, 54,816.23 and 21,816.98

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Solution

The fourth proportional to 39,722.03, 54,816.23 and 21,816.98 is: 30,107.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,722.03 : 54,816.23 = 21,816.98 : x
  2. Step 2: Convert to fraction form
    39,722.03/54,816.23 = 21,816.98/x
  3. Step 3: Cross multiply
    39,722.03x = 54,816.23 × 21,816.98
  4. Step 4: Simplify right side
    39,722.03x = 1,195,924,210.42
  5. Step 5: Solve for x
    x = 1,195,924,210.42/39,722.03
  6. Step 6: Final answer
    x = 30,107.33

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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.