Home / 19,699.20-29,545.92-7,215.84

Finding the Fourth Proportional to 19,699.20, 29,545.92 and 7,215.84

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Solution

The fourth proportional to 19,699.20, 29,545.92 and 7,215.84 is: 10,822.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,699.20 : 29,545.92 = 7,215.84 : x
  2. Step 2: Convert to fraction form
    19,699.20/29,545.92 = 7,215.84/x
  3. Step 3: Cross multiply
    19,699.20x = 29,545.92 × 7,215.84
  4. Step 4: Simplify right side
    19,699.20x = 213,198,631.37
  5. Step 5: Solve for x
    x = 213,198,631.37/19,699.20
  6. Step 6: Final answer
    x = 10,822.71

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1.5x scale

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.