Home / 19,118.40-28,668.29-8,022.08

Finding the Fourth Proportional to 19,118.40, 28,668.29 and 8,022.08

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Solution

The fourth proportional to 19,118.40, 28,668.29 and 8,022.08 is: 12,029.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118.40 : 28,668.29 = 8,022.08 : x
  2. Step 2: Convert to fraction form
    19,118.40/28,668.29 = 8,022.08/x
  3. Step 3: Cross multiply
    19,118.40x = 28,668.29 × 8,022.08
  4. Step 4: Simplify right side
    19,118.40x = 229,979,132.39
  5. Step 5: Solve for x
    x = 229,979,132.39/19,118.40
  6. Step 6: Final answer
    x = 12,029.20

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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.