Home / 27,617.39-38,099.88-18,661.63

Finding the Fourth Proportional to 27,617.39, 38,099.88 and 18,661.63

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Solution

The fourth proportional to 27,617.39, 38,099.88 and 18,661.63 is: 25,744.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,617.39 : 38,099.88 = 18,661.63 : x
  2. Step 2: Convert to fraction form
    27,617.39/38,099.88 = 18,661.63/x
  3. Step 3: Cross multiply
    27,617.39x = 38,099.88 × 18,661.63
  4. Step 4: Simplify right side
    27,617.39x = 711,005,770.30
  5. Step 5: Solve for x
    x = 711,005,770.30/27,617.39
  6. Step 6: Final answer
    x = 25,744.86

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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.