Home / 28,949.68-43,431-15,795.28

Finding the Fourth Proportional to 28,949.68, 43,431 and 15,795.28

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Solution

The fourth proportional to 28,949.68, 43,431 and 15,795.28 is: 23,696.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,949.68 : 43,431 = 15,795.28 : x
  2. Step 2: Convert to fraction form
    28,949.68/43,431 = 15,795.28/x
  3. Step 3: Cross multiply
    28,949.68x = 43,431 × 15,795.28
  4. Step 4: Simplify right side
    28,949.68x = 686,004,805.68
  5. Step 5: Solve for x
    x = 686,004,805.68/28,949.68
  6. Step 6: Final answer
    x = 23,696.46

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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.