Home / 28,898.76-43,344.21-7,840.16

Finding the Fourth Proportional to 28,898.76, 43,344.21 and 7,840.16

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Solution

The fourth proportional to 28,898.76, 43,344.21 and 7,840.16 is: 11,759.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,898.76 : 43,344.21 = 7,840.16 : x
  2. Step 2: Convert to fraction form
    28,898.76/43,344.21 = 7,840.16/x
  3. Step 3: Cross multiply
    28,898.76x = 43,344.21 × 7,840.16
  4. Step 4: Simplify right side
    28,898.76x = 339,825,324.75
  5. Step 5: Solve for x
    x = 339,825,324.75/28,898.76
  6. Step 6: Final answer
    x = 11,759.17

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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.