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Finding the Fourth Proportional to 34,415.60, 51,610.60 and 13,634.80

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Solution

The fourth proportional to 34,415.60, 51,610.60 and 13,634.80 is: 20,447.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,415.60 : 51,610.60 = 13,634.80 : x
  2. Step 2: Convert to fraction form
    34,415.60/51,610.60 = 13,634.80/x
  3. Step 3: Cross multiply
    34,415.60x = 51,610.60 × 13,634.80
  4. Step 4: Simplify right side
    34,415.60x = 703,700,208.88
  5. Step 5: Solve for x
    x = 703,700,208.88/34,415.60
  6. Step 6: Final answer
    x = 20,447.13

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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.