Home / 25,871.42-38,872.74-16,515.92

Finding the Fourth Proportional to 25,871.42, 38,872.74 and 16,515.92

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Solution

The fourth proportional to 25,871.42, 38,872.74 and 16,515.92 is: 24,815.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,871.42 : 38,872.74 = 16,515.92 : x
  2. Step 2: Convert to fraction form
    25,871.42/38,872.74 = 16,515.92/x
  3. Step 3: Cross multiply
    25,871.42x = 38,872.74 × 16,515.92
  4. Step 4: Simplify right side
    25,871.42x = 642,019,064.02
  5. Step 5: Solve for x
    x = 642,019,064.02/25,871.42
  6. Step 6: Final answer
    x = 24,815.76

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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.