Home / 20,835.09-28,752.45-11,274.96

Finding the Fourth Proportional to 20,835.09, 28,752.45 and 11,274.96

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Solution

The fourth proportional to 20,835.09, 28,752.45 and 11,274.96 is: 15,559.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,835.09 : 28,752.45 = 11,274.96 : x
  2. Step 2: Convert to fraction form
    20,835.09/28,752.45 = 11,274.96/x
  3. Step 3: Cross multiply
    20,835.09x = 28,752.45 × 11,274.96
  4. Step 4: Simplify right side
    20,835.09x = 324,182,723.65
  5. Step 5: Solve for x
    x = 324,182,723.65/20,835.09
  6. Step 6: Final answer
    x = 15,559.46

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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.