Home / 26,099.60-36,016.79-15,489

Finding the Fourth Proportional to 26,099.60, 36,016.79 and 15,489

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Solution

The fourth proportional to 26,099.60, 36,016.79 and 15,489 is: 21,374.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,099.60 : 36,016.79 = 15,489 : x
  2. Step 2: Convert to fraction form
    26,099.60/36,016.79 = 15,489/x
  3. Step 3: Cross multiply
    26,099.60x = 36,016.79 × 15,489
  4. Step 4: Simplify right side
    26,099.60x = 557,863,982.87
  5. Step 5: Solve for x
    x = 557,863,982.87/26,099.60
  6. Step 6: Final answer
    x = 21,374.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.