Home / 26,889.47-40,289.36-18,979.02

Finding the Fourth Proportional to 26,889.47, 40,289.36 and 18,979.02

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Solution

The fourth proportional to 26,889.47, 40,289.36 and 18,979.02 is: 28,436.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,889.47 : 40,289.36 = 18,979.02 : x
  2. Step 2: Convert to fraction form
    26,889.47/40,289.36 = 18,979.02/x
  3. Step 3: Cross multiply
    26,889.47x = 40,289.36 × 18,979.02
  4. Step 4: Simplify right side
    26,889.47x = 764,652,474.33
  5. Step 5: Solve for x
    x = 764,652,474.33/26,889.47
  6. Step 6: Final answer
    x = 28,436.88

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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.