Home / 21,824.28-30,085.76-17,349.84

Finding the Fourth Proportional to 21,824.28, 30,085.76 and 17,349.84

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Solution

The fourth proportional to 21,824.28, 30,085.76 and 17,349.84 is: 23,917.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,824.28 : 30,085.76 = 17,349.84 : x
  2. Step 2: Convert to fraction form
    21,824.28/30,085.76 = 17,349.84/x
  3. Step 3: Cross multiply
    21,824.28x = 30,085.76 × 17,349.84
  4. Step 4: Simplify right side
    21,824.28x = 521,983,122.28
  5. Step 5: Solve for x
    x = 521,983,122.28/21,824.28
  6. Step 6: Final answer
    x = 23,917.54

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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.