Home / 27,617.81-38,110.24-15,517.35

Finding the Fourth Proportional to 27,617.81, 38,110.24 and 15,517.35

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Solution

The fourth proportional to 27,617.81, 38,110.24 and 15,517.35 is: 21,412.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,617.81 : 38,110.24 = 15,517.35 : x
  2. Step 2: Convert to fraction form
    27,617.81/38,110.24 = 15,517.35/x
  3. Step 3: Cross multiply
    27,617.81x = 38,110.24 × 15,517.35
  4. Step 4: Simplify right side
    27,617.81x = 591,369,932.66
  5. Step 5: Solve for x
    x = 591,369,932.66/27,617.81
  6. Step 6: Final answer
    x = 21,412.63

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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.