Home / 27,663.87-38,170.74-15,725.17

Finding the Fourth Proportional to 27,663.87, 38,170.74 and 15,725.17

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Solution

The fourth proportional to 27,663.87, 38,170.74 and 15,725.17 is: 21,697.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,663.87 : 38,170.74 = 15,725.17 : x
  2. Step 2: Convert to fraction form
    27,663.87/38,170.74 = 15,725.17/x
  3. Step 3: Cross multiply
    27,663.87x = 38,170.74 × 15,725.17
  4. Step 4: Simplify right side
    27,663.87x = 600,241,375.53
  5. Step 5: Solve for x
    x = 600,241,375.53/27,663.87
  6. Step 6: Final answer
    x = 21,697.66

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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.