Home / 20,824.66-28,737.99-11,393.23

Finding the Fourth Proportional to 20,824.66, 28,737.99 and 11,393.23

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Solution

The fourth proportional to 20,824.66, 28,737.99 and 11,393.23 is: 15,722.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,824.66 : 28,737.99 = 11,393.23 : x
  2. Step 2: Convert to fraction form
    20,824.66/28,737.99 = 11,393.23/x
  3. Step 3: Cross multiply
    20,824.66x = 28,737.99 × 11,393.23
  4. Step 4: Simplify right side
    20,824.66x = 327,418,529.81
  5. Step 5: Solve for x
    x = 327,418,529.81/20,824.66
  6. Step 6: Final answer
    x = 15,722.64

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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.