Home / 34,663.20-51,994.80-17,129.40

Finding the Fourth Proportional to 34,663.20, 51,994.80 and 17,129.40

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Solution

The fourth proportional to 34,663.20, 51,994.80 and 17,129.40 is: 25,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,663.20 : 51,994.80 = 17,129.40 : x
  2. Step 2: Convert to fraction form
    34,663.20/51,994.80 = 17,129.40/x
  3. Step 3: Cross multiply
    34,663.20x = 51,994.80 × 17,129.40
  4. Step 4: Simplify right side
    34,663.20x = 890,639,727.12
  5. Step 5: Solve for x
    x = 890,639,727.12/34,663.20
  6. Step 6: Final answer
    x = 25,694.10

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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.