Home / 28,881.81-43,324.26-9,161.94

Finding the Fourth Proportional to 28,881.81, 43,324.26 and 9,161.94

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Solution

The fourth proportional to 28,881.81, 43,324.26 and 9,161.94 is: 13,743.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,881.81 : 43,324.26 = 9,161.94 : x
  2. Step 2: Convert to fraction form
    28,881.81/43,324.26 = 9,161.94/x
  3. Step 3: Cross multiply
    28,881.81x = 43,324.26 × 9,161.94
  4. Step 4: Simplify right side
    28,881.81x = 396,934,270.66
  5. Step 5: Solve for x
    x = 396,934,270.66/28,881.81
  6. Step 6: Final answer
    x = 13,743.40

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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.