Home / 27,984.66-38,619.09-15,409.86

Finding the Fourth Proportional to 27,984.66, 38,619.09 and 15,409.86

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Solution

The fourth proportional to 27,984.66, 38,619.09 and 15,409.86 is: 21,265.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,984.66 : 38,619.09 = 15,409.86 : x
  2. Step 2: Convert to fraction form
    27,984.66/38,619.09 = 15,409.86/x
  3. Step 3: Cross multiply
    27,984.66x = 38,619.09 × 15,409.86
  4. Step 4: Simplify right side
    27,984.66x = 595,114,770.23
  5. Step 5: Solve for x
    x = 595,114,770.23/27,984.66
  6. Step 6: Final answer
    x = 21,265.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.