Home / 18,428.75-27,602.61-15,229.94

Finding the Fourth Proportional to 18,428.75, 27,602.61 and 15,229.94

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Solution

The fourth proportional to 18,428.75, 27,602.61 and 15,229.94 is: 22,811.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.75 : 27,602.61 = 15,229.94 : x
  2. Step 2: Convert to fraction form
    18,428.75/27,602.61 = 15,229.94/x
  3. Step 3: Cross multiply
    18,428.75x = 27,602.61 × 15,229.94
  4. Step 4: Simplify right side
    18,428.75x = 420,386,060.31
  5. Step 5: Solve for x
    x = 420,386,060.31/18,428.75
  6. Step 6: Final answer
    x = 22,811.42

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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.