Home / 19,318.58-28,977.31-6,171.74

Finding the Fourth Proportional to 19,318.58, 28,977.31 and 6,171.74

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Solution

The fourth proportional to 19,318.58, 28,977.31 and 6,171.74 is: 9,257.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318.58 : 28,977.31 = 6,171.74 : x
  2. Step 2: Convert to fraction form
    19,318.58/28,977.31 = 6,171.74/x
  3. Step 3: Cross multiply
    19,318.58x = 28,977.31 × 6,171.74
  4. Step 4: Simplify right side
    19,318.58x = 178,840,423.22
  5. Step 5: Solve for x
    x = 178,840,423.22/19,318.58
  6. Step 6: Final answer
    x = 9,257.43

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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.