Home / 28,782.52-43,170.66-7,724.68

Finding the Fourth Proportional to 28,782.52, 43,170.66 and 7,724.68

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Solution

The fourth proportional to 28,782.52, 43,170.66 and 7,724.68 is: 11,586.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,782.52 : 43,170.66 = 7,724.68 : x
  2. Step 2: Convert to fraction form
    28,782.52/43,170.66 = 7,724.68/x
  3. Step 3: Cross multiply
    28,782.52x = 43,170.66 × 7,724.68
  4. Step 4: Simplify right side
    28,782.52x = 333,479,533.89
  5. Step 5: Solve for x
    x = 333,479,533.89/28,782.52
  6. Step 6: Final answer
    x = 11,586.18

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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.