Home / 17,320.19-25,981.74-5,470.79

Finding the Fourth Proportional to 17,320.19, 25,981.74 and 5,470.79

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Solution

The fourth proportional to 17,320.19, 25,981.74 and 5,470.79 is: 8,206.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,320.19 : 25,981.74 = 5,470.79 : x
  2. Step 2: Convert to fraction form
    17,320.19/25,981.74 = 5,470.79/x
  3. Step 3: Cross multiply
    17,320.19x = 25,981.74 × 5,470.79
  4. Step 4: Simplify right side
    17,320.19x = 142,140,513.47
  5. Step 5: Solve for x
    x = 142,140,513.47/17,320.19
  6. Step 6: Final answer
    x = 8,206.64

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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.