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Finding the Fourth Proportional to 17,885.54, 26,845.97 and 13,427.71

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Solution

The fourth proportional to 17,885.54, 26,845.97 and 13,427.71 is: 20,154.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,885.54 : 26,845.97 = 13,427.71 : x
  2. Step 2: Convert to fraction form
    17,885.54/26,845.97 = 13,427.71/x
  3. Step 3: Cross multiply
    17,885.54x = 26,845.97 × 13,427.71
  4. Step 4: Simplify right side
    17,885.54x = 360,479,899.83
  5. Step 5: Solve for x
    x = 360,479,899.83/17,885.54
  6. Step 6: Final answer
    x = 20,154.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.