Home / 18,072.95-27,125.62-15,129.81

Finding the Fourth Proportional to 18,072.95, 27,125.62 and 15,129.81

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Solution

The fourth proportional to 18,072.95, 27,125.62 and 15,129.81 is: 22,708.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,072.95 : 27,125.62 = 15,129.81 : x
  2. Step 2: Convert to fraction form
    18,072.95/27,125.62 = 15,129.81/x
  3. Step 3: Cross multiply
    18,072.95x = 27,125.62 × 15,129.81
  4. Step 4: Simplify right side
    18,072.95x = 410,405,438.91
  5. Step 5: Solve for x
    x = 410,405,438.91/18,072.95
  6. Step 6: Final answer
    x = 22,708.28

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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.