Home / 27,409.21-41,072.64-21,159.79

Finding the Fourth Proportional to 27,409.21, 41,072.64 and 21,159.79

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Solution

The fourth proportional to 27,409.21, 41,072.64 and 21,159.79 is: 31,707.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,409.21 : 41,072.64 = 21,159.79 : x
  2. Step 2: Convert to fraction form
    27,409.21/41,072.64 = 21,159.79/x
  3. Step 3: Cross multiply
    27,409.21x = 41,072.64 × 21,159.79
  4. Step 4: Simplify right side
    27,409.21x = 869,088,437.15
  5. Step 5: Solve for x
    x = 869,088,437.15/27,409.21
  6. Step 6: Final answer
    x = 31,707.90

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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.