Home / 38,576.93-57,870-13,611.81

Finding the Fourth Proportional to 38,576.93, 57,870 and 13,611.81

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Solution

The fourth proportional to 38,576.93, 57,870 and 13,611.81 is: 20,419.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,576.93 : 57,870 = 13,611.81 : x
  2. Step 2: Convert to fraction form
    38,576.93/57,870 = 13,611.81/x
  3. Step 3: Cross multiply
    38,576.93x = 57,870 × 13,611.81
  4. Step 4: Simplify right side
    38,576.93x = 787,715,444.70
  5. Step 5: Solve for x
    x = 787,715,444.70/38,576.93
  6. Step 6: Final answer
    x = 20,419.34

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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.