Home / 27,921.21-38,536.07-18,962.61

Finding the Fourth Proportional to 27,921.21, 38,536.07 and 18,962.61

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Solution

The fourth proportional to 27,921.21, 38,536.07 and 18,962.61 is: 26,171.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.21 : 38,536.07 = 18,962.61 : x
  2. Step 2: Convert to fraction form
    27,921.21/38,536.07 = 18,962.61/x
  3. Step 3: Cross multiply
    27,921.21x = 38,536.07 × 18,962.61
  4. Step 4: Simplify right side
    27,921.21x = 730,744,371.53
  5. Step 5: Solve for x
    x = 730,744,371.53/27,921.21
  6. Step 6: Final answer
    x = 26,171.66

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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.