Home / 27,066.72-40,538.52-18,708.87

Finding the Fourth Proportional to 27,066.72, 40,538.52 and 18,708.87

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Solution

The fourth proportional to 27,066.72, 40,538.52 and 18,708.87 is: 28,020.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,066.72 : 40,538.52 = 18,708.87 : x
  2. Step 2: Convert to fraction form
    27,066.72/40,538.52 = 18,708.87/x
  3. Step 3: Cross multiply
    27,066.72x = 40,538.52 × 18,708.87
  4. Step 4: Simplify right side
    27,066.72x = 758,429,900.67
  5. Step 5: Solve for x
    x = 758,429,900.67/27,066.72
  6. Step 6: Final answer
    x = 28,020.75

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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.