Home / 17,012.45-25,470.75-12,839.20

Finding the Fourth Proportional to 17,012.45, 25,470.75 and 12,839.20

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Solution

The fourth proportional to 17,012.45, 25,470.75 and 12,839.20 is: 19,222.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,012.45 : 25,470.75 = 12,839.20 : x
  2. Step 2: Convert to fraction form
    17,012.45/25,470.75 = 12,839.20/x
  3. Step 3: Cross multiply
    17,012.45x = 25,470.75 × 12,839.20
  4. Step 4: Simplify right side
    17,012.45x = 327,024,053.40
  5. Step 5: Solve for x
    x = 327,024,053.40/17,012.45
  6. Step 6: Final answer
    x = 19,222.63

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1.5x scale

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.