Home / 27,672.04-38,185.86-15,738.28

Finding the Fourth Proportional to 27,672.04, 38,185.86 and 15,738.28

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Solution

The fourth proportional to 27,672.04, 38,185.86 and 15,738.28 is: 21,717.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,672.04 : 38,185.86 = 15,738.28 : x
  2. Step 2: Convert to fraction form
    27,672.04/38,185.86 = 15,738.28/x
  3. Step 3: Cross multiply
    27,672.04x = 38,185.86 × 15,738.28
  4. Step 4: Simplify right side
    27,672.04x = 600,979,756.72
  5. Step 5: Solve for x
    x = 600,979,756.72/27,672.04
  6. Step 6: Final answer
    x = 21,717.94

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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.