Home / 28,715.79-43,076.12-7,659.03

Finding the Fourth Proportional to 28,715.79, 43,076.12 and 7,659.03

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Solution

The fourth proportional to 28,715.79, 43,076.12 and 7,659.03 is: 11,489.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,715.79 : 43,076.12 = 7,659.03 : x
  2. Step 2: Convert to fraction form
    28,715.79/43,076.12 = 7,659.03/x
  3. Step 3: Cross multiply
    28,715.79x = 43,076.12 × 7,659.03
  4. Step 4: Simplify right side
    28,715.79x = 329,921,295.36
  5. Step 5: Solve for x
    x = 329,921,295.36/28,715.79
  6. Step 6: Final answer
    x = 11,489.19

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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.