Home / 27,128.66-40,708.11-14,648.42

Finding the Fourth Proportional to 27,128.66, 40,708.11 and 14,648.42

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Solution

The fourth proportional to 27,128.66, 40,708.11 and 14,648.42 is: 21,980.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,128.66 : 40,708.11 = 14,648.42 : x
  2. Step 2: Convert to fraction form
    27,128.66/40,708.11 = 14,648.42/x
  3. Step 3: Cross multiply
    27,128.66x = 40,708.11 × 14,648.42
  4. Step 4: Simplify right side
    27,128.66x = 596,309,492.69
  5. Step 5: Solve for x
    x = 596,309,492.69/27,128.66
  6. Step 6: Final answer
    x = 21,980.79

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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.