Home / 27,955.52-38,578.56-15,380.24

Finding the Fourth Proportional to 27,955.52, 38,578.56 and 15,380.24

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Solution

The fourth proportional to 27,955.52, 38,578.56 and 15,380.24 is: 21,224.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,955.52 : 38,578.56 = 15,380.24 : x
  2. Step 2: Convert to fraction form
    27,955.52/38,578.56 = 15,380.24/x
  3. Step 3: Cross multiply
    27,955.52x = 38,578.56 × 15,380.24
  4. Step 4: Simplify right side
    27,955.52x = 593,347,511.65
  5. Step 5: Solve for x
    x = 593,347,511.65/27,955.52
  6. Step 6: Final answer
    x = 21,224.70

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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.