Home / 22,150.92-30,571.02-12,719.28

Finding the Fourth Proportional to 22,150.92, 30,571.02 and 12,719.28

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Solution

The fourth proportional to 22,150.92, 30,571.02 and 12,719.28 is: 17,554.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,150.92 : 30,571.02 = 12,719.28 : x
  2. Step 2: Convert to fraction form
    22,150.92/30,571.02 = 12,719.28/x
  3. Step 3: Cross multiply
    22,150.92x = 30,571.02 × 12,719.28
  4. Step 4: Simplify right side
    22,150.92x = 388,841,363.27
  5. Step 5: Solve for x
    x = 388,841,363.27/22,150.92
  6. Step 6: Final answer
    x = 17,554.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.