Home / 19,210.89-28,796.61-13,932.75

Finding the Fourth Proportional to 19,210.89, 28,796.61 and 13,932.75

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Solution

The fourth proportional to 19,210.89, 28,796.61 and 13,932.75 is: 20,884.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.89 : 28,796.61 = 13,932.75 : x
  2. Step 2: Convert to fraction form
    19,210.89/28,796.61 = 13,932.75/x
  3. Step 3: Cross multiply
    19,210.89x = 28,796.61 × 13,932.75
  4. Step 4: Simplify right side
    19,210.89x = 401,215,967.98
  5. Step 5: Solve for x
    x = 401,215,967.98/19,210.89
  6. Step 6: Final answer
    x = 20,884.82

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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.