Home / 20,744.25-28,628.08-11,672.45

Finding the Fourth Proportional to 20,744.25, 28,628.08 and 11,672.45

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Solution

The fourth proportional to 20,744.25, 28,628.08 and 11,672.45 is: 16,108.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.25 : 28,628.08 = 11,672.45 : x
  2. Step 2: Convert to fraction form
    20,744.25/28,628.08 = 11,672.45/x
  3. Step 3: Cross multiply
    20,744.25x = 28,628.08 × 11,672.45
  4. Step 4: Simplify right side
    20,744.25x = 334,159,767.43
  5. Step 5: Solve for x
    x = 334,159,767.43/20,744.25
  6. Step 6: Final answer
    x = 16,108.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.