Home / 20,899.27-28,840.61-11,824.53

Finding the Fourth Proportional to 20,899.27, 28,840.61 and 11,824.53

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Solution

The fourth proportional to 20,899.27, 28,840.61 and 11,824.53 is: 16,317.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899.27 : 28,840.61 = 11,824.53 : x
  2. Step 2: Convert to fraction form
    20,899.27/28,840.61 = 11,824.53/x
  3. Step 3: Cross multiply
    20,899.27x = 28,840.61 × 11,824.53
  4. Step 4: Simplify right side
    20,899.27x = 341,026,675.29
  5. Step 5: Solve for x
    x = 341,026,675.29/20,899.27
  6. Step 6: Final answer
    x = 16,317.64

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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.