Home / 28,811.09-43,216.61-9,091.19

Finding the Fourth Proportional to 28,811.09, 43,216.61 and 9,091.19

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Solution

The fourth proportional to 28,811.09, 43,216.61 and 9,091.19 is: 13,636.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,811.09 : 43,216.61 = 9,091.19 : x
  2. Step 2: Convert to fraction form
    28,811.09/43,216.61 = 9,091.19/x
  3. Step 3: Cross multiply
    28,811.09x = 43,216.61 × 9,091.19
  4. Step 4: Simplify right side
    28,811.09x = 392,890,151.13
  5. Step 5: Solve for x
    x = 392,890,151.13/28,811.09
  6. Step 6: Final answer
    x = 13,636.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.