Home / 17,031.92-25,539.24-7,790

Finding the Fourth Proportional to 17,031.92, 25,539.24 and 7,790

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Solution

The fourth proportional to 17,031.92, 25,539.24 and 7,790 is: 11,681.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,031.92 : 25,539.24 = 7,790 : x
  2. Step 2: Convert to fraction form
    17,031.92/25,539.24 = 7,790/x
  3. Step 3: Cross multiply
    17,031.92x = 25,539.24 × 7,790
  4. Step 4: Simplify right side
    17,031.92x = 198,950,679.60
  5. Step 5: Solve for x
    x = 198,950,679.60/17,031.92
  6. Step 6: Final answer
    x = 11,681.05

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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.