Home / 27,134.21-40,668.50-13,979.40

Finding the Fourth Proportional to 27,134.21, 40,668.50 and 13,979.40

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Solution

The fourth proportional to 27,134.21, 40,668.50 and 13,979.40 is: 20,952.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,134.21 : 40,668.50 = 13,979.40 : x
  2. Step 2: Convert to fraction form
    27,134.21/40,668.50 = 13,979.40/x
  3. Step 3: Cross multiply
    27,134.21x = 40,668.50 × 13,979.40
  4. Step 4: Simplify right side
    27,134.21x = 568,521,263.85
  5. Step 5: Solve for x
    x = 568,521,263.85/27,134.21
  6. Step 6: Final answer
    x = 20,952.20

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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.