Home / 27,608.66-38,108.55-15,679.94

Finding the Fourth Proportional to 27,608.66, 38,108.55 and 15,679.94

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Solution

The fourth proportional to 27,608.66, 38,108.55 and 15,679.94 is: 21,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,608.66 : 38,108.55 = 15,679.94 : x
  2. Step 2: Convert to fraction form
    27,608.66/38,108.55 = 15,679.94/x
  3. Step 3: Cross multiply
    27,608.66x = 38,108.55 × 15,679.94
  4. Step 4: Simplify right side
    27,608.66x = 597,539,777.49
  5. Step 5: Solve for x
    x = 597,539,777.49/27,608.66
  6. Step 6: Final answer
    x = 21,643.20

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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.