Home / 28,769.85-43,151.27-7,711.47

Finding the Fourth Proportional to 28,769.85, 43,151.27 and 7,711.47

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Solution

The fourth proportional to 28,769.85, 43,151.27 and 7,711.47 is: 11,566.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,769.85 : 43,151.27 = 7,711.47 : x
  2. Step 2: Convert to fraction form
    28,769.85/43,151.27 = 7,711.47/x
  3. Step 3: Cross multiply
    28,769.85x = 43,151.27 × 7,711.47
  4. Step 4: Simplify right side
    28,769.85x = 332,759,685.51
  5. Step 5: Solve for x
    x = 332,759,685.51/28,769.85
  6. Step 6: Final answer
    x = 11,566.26

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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.