Home / 38,576.86-57,869.91-13,611.75

Finding the Fourth Proportional to 38,576.86, 57,869.91 and 13,611.75

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Solution

The fourth proportional to 38,576.86, 57,869.91 and 13,611.75 is: 20,419.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,576.86 : 57,869.91 = 13,611.75 : x
  2. Step 2: Convert to fraction form
    38,576.86/57,869.91 = 13,611.75/x
  3. Step 3: Cross multiply
    38,576.86x = 57,869.91 × 13,611.75
  4. Step 4: Simplify right side
    38,576.86x = 787,710,530.43
  5. Step 5: Solve for x
    x = 787,710,530.43/38,576.86
  6. Step 6: Final answer
    x = 20,419.25

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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.