Home / 39,914.40-59,821.20-20,198.40

Finding the Fourth Proportional to 39,914.40, 59,821.20 and 20,198.40

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Solution

The fourth proportional to 39,914.40, 59,821.20 and 20,198.40 is: 30,272.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,914.40 : 59,821.20 = 20,198.40 : x
  2. Step 2: Convert to fraction form
    39,914.40/59,821.20 = 20,198.40/x
  3. Step 3: Cross multiply
    39,914.40x = 59,821.20 × 20,198.40
  4. Step 4: Simplify right side
    39,914.40x = 1,208,292,526.08
  5. Step 5: Solve for x
    x = 1,208,292,526.08/39,914.40
  6. Step 6: Final answer
    x = 30,272.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.