Home / 18,433.67-27,664.25-13,700.72

Finding the Fourth Proportional to 18,433.67, 27,664.25 and 13,700.72

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Solution

The fourth proportional to 18,433.67, 27,664.25 and 13,700.72 is: 20,561.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,433.67 : 27,664.25 = 13,700.72 : x
  2. Step 2: Convert to fraction form
    18,433.67/27,664.25 = 13,700.72/x
  3. Step 3: Cross multiply
    18,433.67x = 27,664.25 × 13,700.72
  4. Step 4: Simplify right side
    18,433.67x = 379,020,143.92
  5. Step 5: Solve for x
    x = 379,020,143.92/18,433.67
  6. Step 6: Final answer
    x = 20,561.30

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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.