Home / 27,984.45-38,619.48-15,238.12

Finding the Fourth Proportional to 27,984.45, 38,619.48 and 15,238.12

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Solution

The fourth proportional to 27,984.45, 38,619.48 and 15,238.12 is: 21,029.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,984.45 : 38,619.48 = 15,238.12 : x
  2. Step 2: Convert to fraction form
    27,984.45/38,619.48 = 15,238.12/x
  3. Step 3: Cross multiply
    27,984.45x = 38,619.48 × 15,238.12
  4. Step 4: Simplify right side
    27,984.45x = 588,488,232.48
  5. Step 5: Solve for x
    x = 588,488,232.48/27,984.45
  6. Step 6: Final answer
    x = 21,029.12

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1.5x scale

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.