Home / 19,317.48-28,982.70-6,171.72

Finding the Fourth Proportional to 19,317.48, 28,982.70 and 6,171.72

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Solution

The fourth proportional to 19,317.48, 28,982.70 and 6,171.72 is: 9,259.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,317.48 : 28,982.70 = 6,171.72 : x
  2. Step 2: Convert to fraction form
    19,317.48/28,982.70 = 6,171.72/x
  3. Step 3: Cross multiply
    19,317.48x = 28,982.70 × 6,171.72
  4. Step 4: Simplify right side
    19,317.48x = 178,873,109.24
  5. Step 5: Solve for x
    x = 178,873,109.24/19,317.48
  6. Step 6: Final answer
    x = 9,259.65

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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.