Home / 19,240.13-28,839.17-12,223.28

Finding the Fourth Proportional to 19,240.13, 28,839.17 and 12,223.28

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Solution

The fourth proportional to 19,240.13, 28,839.17 and 12,223.28 is: 18,321.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,240.13 : 28,839.17 = 12,223.28 : x
  2. Step 2: Convert to fraction form
    19,240.13/28,839.17 = 12,223.28/x
  3. Step 3: Cross multiply
    19,240.13x = 28,839.17 × 12,223.28
  4. Step 4: Simplify right side
    19,240.13x = 352,509,136.24
  5. Step 5: Solve for x
    x = 352,509,136.24/19,240.13
  6. Step 6: Final answer
    x = 18,321.56

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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.