Home / 17,169.20-25,756.70-5,320.25

Finding the Fourth Proportional to 17,169.20, 25,756.70 and 5,320.25

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Solution

The fourth proportional to 17,169.20, 25,756.70 and 5,320.25 is: 7,981.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,169.20 : 25,756.70 = 5,320.25 : x
  2. Step 2: Convert to fraction form
    17,169.20/25,756.70 = 5,320.25/x
  3. Step 3: Cross multiply
    17,169.20x = 25,756.70 × 5,320.25
  4. Step 4: Simplify right side
    17,169.20x = 137,031,927.79
  5. Step 5: Solve for x
    x = 137,031,927.79/17,169.20
  6. Step 6: Final answer
    x = 7,981.27

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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.