Home / 31,980.69-47,974.95-17,169.30

Finding the Fourth Proportional to 31,980.69, 47,974.95 and 17,169.30

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Solution

The fourth proportional to 31,980.69, 47,974.95 and 17,169.30 is: 25,756.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,980.69 : 47,974.95 = 17,169.30 : x
  2. Step 2: Convert to fraction form
    31,980.69/47,974.95 = 17,169.30/x
  3. Step 3: Cross multiply
    31,980.69x = 47,974.95 × 17,169.30
  4. Step 4: Simplify right side
    31,980.69x = 823,696,309.04
  5. Step 5: Solve for x
    x = 823,696,309.04/31,980.69
  6. Step 6: Final answer
    x = 25,756.05

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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.