Home / 25,977.81-38,981.27-10,396.65

Finding the Fourth Proportional to 25,977.81, 38,981.27 and 10,396.65

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Solution

The fourth proportional to 25,977.81, 38,981.27 and 10,396.65 is: 15,600.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,977.81 : 38,981.27 = 10,396.65 : x
  2. Step 2: Convert to fraction form
    25,977.81/38,981.27 = 10,396.65/x
  3. Step 3: Cross multiply
    25,977.81x = 38,981.27 × 10,396.65
  4. Step 4: Simplify right side
    25,977.81x = 405,274,568.76
  5. Step 5: Solve for x
    x = 405,274,568.76/25,977.81
  6. Step 6: Final answer
    x = 15,600.80

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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.