Home / 19,298.25-28,995.77-12,281.29

Finding the Fourth Proportional to 19,298.25, 28,995.77 and 12,281.29

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Solution

The fourth proportional to 19,298.25, 28,995.77 and 12,281.29 is: 18,452.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,298.25 : 28,995.77 = 12,281.29 : x
  2. Step 2: Convert to fraction form
    19,298.25/28,995.77 = 12,281.29/x
  3. Step 3: Cross multiply
    19,298.25x = 28,995.77 × 12,281.29
  4. Step 4: Simplify right side
    19,298.25x = 356,105,418.36
  5. Step 5: Solve for x
    x = 356,105,418.36/19,298.25
  6. Step 6: Final answer
    x = 18,452.73

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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.