Home / 19,317.98-28,980.23-5,987.91

Finding the Fourth Proportional to 19,317.98, 28,980.23 and 5,987.91

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Solution

The fourth proportional to 19,317.98, 28,980.23 and 5,987.91 is: 8,982.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,317.98 : 28,980.23 = 5,987.91 : x
  2. Step 2: Convert to fraction form
    19,317.98/28,980.23 = 5,987.91/x
  3. Step 3: Cross multiply
    19,317.98x = 28,980.23 × 5,987.91
  4. Step 4: Simplify right side
    19,317.98x = 173,530,979.08
  5. Step 5: Solve for x
    x = 173,530,979.08/19,317.98
  6. Step 6: Final answer
    x = 8,982.88

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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.