Home / 27,611.82-38,108.34-15,672.69

Finding the Fourth Proportional to 27,611.82, 38,108.34 and 15,672.69

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Solution

The fourth proportional to 27,611.82, 38,108.34 and 15,672.69 is: 21,630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,611.82 : 38,108.34 = 15,672.69 : x
  2. Step 2: Convert to fraction form
    27,611.82/38,108.34 = 15,672.69/x
  3. Step 3: Cross multiply
    27,611.82x = 38,108.34 × 15,672.69
  4. Step 4: Simplify right side
    27,611.82x = 597,260,199.23
  5. Step 5: Solve for x
    x = 597,260,199.23/27,611.82
  6. Step 6: Final answer
    x = 21,630.60

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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.