Home / 20,628.41-28,466.44-11,196.77

Finding the Fourth Proportional to 20,628.41, 28,466.44 and 11,196.77

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Solution

The fourth proportional to 20,628.41, 28,466.44 and 11,196.77 is: 15,451.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,628.41 : 28,466.44 = 11,196.77 : x
  2. Step 2: Convert to fraction form
    20,628.41/28,466.44 = 11,196.77/x
  3. Step 3: Cross multiply
    20,628.41x = 28,466.44 × 11,196.77
  4. Step 4: Simplify right side
    20,628.41x = 318,732,011.07
  5. Step 5: Solve for x
    x = 318,732,011.07/20,628.41
  6. Step 6: Final answer
    x = 15,451.12

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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.