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Finding the Fourth Proportional to 17,030.98, 25,539.99 and 7,790.50

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Solution

The fourth proportional to 17,030.98, 25,539.99 and 7,790.50 is: 11,682.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,030.98 : 25,539.99 = 7,790.50 : x
  2. Step 2: Convert to fraction form
    17,030.98/25,539.99 = 7,790.50/x
  3. Step 3: Cross multiply
    17,030.98x = 25,539.99 × 7,790.50
  4. Step 4: Simplify right side
    17,030.98x = 198,969,292.10
  5. Step 5: Solve for x
    x = 198,969,292.10/17,030.98
  6. Step 6: Final answer
    x = 11,682.79

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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.