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Finding the Fourth Proportional to 17,785.30, 26,677.95 and 15,481.30

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Solution

The fourth proportional to 17,785.30, 26,677.95 and 15,481.30 is: 23,221.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,785.30 : 26,677.95 = 15,481.30 : x
  2. Step 2: Convert to fraction form
    17,785.30/26,677.95 = 15,481.30/x
  3. Step 3: Cross multiply
    17,785.30x = 26,677.95 × 15,481.30
  4. Step 4: Simplify right side
    17,785.30x = 413,009,347.34
  5. Step 5: Solve for x
    x = 413,009,347.34/17,785.30
  6. Step 6: Final answer
    x = 23,221.95

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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.