Home / 25,944.87-38,903.39-8,172.21

Finding the Fourth Proportional to 25,944.87, 38,903.39 and 8,172.21

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Solution

The fourth proportional to 25,944.87, 38,903.39 and 8,172.21 is: 12,253.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,944.87 : 38,903.39 = 8,172.21 : x
  2. Step 2: Convert to fraction form
    25,944.87/38,903.39 = 8,172.21/x
  3. Step 3: Cross multiply
    25,944.87x = 38,903.39 × 8,172.21
  4. Step 4: Simplify right side
    25,944.87x = 317,926,631.93
  5. Step 5: Solve for x
    x = 317,926,631.93/25,944.87
  6. Step 6: Final answer
    x = 12,253.93

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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.