Home / 28,662.27-43,009.80-11,129.82

Finding the Fourth Proportional to 28,662.27, 43,009.80 and 11,129.82

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Solution

The fourth proportional to 28,662.27, 43,009.80 and 11,129.82 is: 16,701.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,662.27 : 43,009.80 = 11,129.82 : x
  2. Step 2: Convert to fraction form
    28,662.27/43,009.80 = 11,129.82/x
  3. Step 3: Cross multiply
    28,662.27x = 43,009.80 × 11,129.82
  4. Step 4: Simplify right side
    28,662.27x = 478,691,117.19
  5. Step 5: Solve for x
    x = 478,691,117.19/28,662.27
  6. Step 6: Final answer
    x = 16,701.09

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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.