Home / 18,572.43-27,859.59-5,425.86

Finding the Fourth Proportional to 18,572.43, 27,859.59 and 5,425.86

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Solution

The fourth proportional to 18,572.43, 27,859.59 and 5,425.86 is: 8,139.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,572.43 : 27,859.59 = 5,425.86 : x
  2. Step 2: Convert to fraction form
    18,572.43/27,859.59 = 5,425.86/x
  3. Step 3: Cross multiply
    18,572.43x = 27,859.59 × 5,425.86
  4. Step 4: Simplify right side
    18,572.43x = 151,162,235.00
  5. Step 5: Solve for x
    x = 151,162,235.00/18,572.43
  6. Step 6: Final answer
    x = 8,139.07

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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.