Home / 17,220.28-23,718.72-13,233.76

Finding the Fourth Proportional to 17,220.28, 23,718.72 and 13,233.76

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Solution

The fourth proportional to 17,220.28, 23,718.72 and 13,233.76 is: 18,227.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,220.28 : 23,718.72 = 13,233.76 : x
  2. Step 2: Convert to fraction form
    17,220.28/23,718.72 = 13,233.76/x
  3. Step 3: Cross multiply
    17,220.28x = 23,718.72 × 13,233.76
  4. Step 4: Simplify right side
    17,220.28x = 313,887,847.99
  5. Step 5: Solve for x
    x = 313,887,847.99/17,220.28
  6. Step 6: Final answer
    x = 18,227.80

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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.