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Finding the Fourth Proportional to 35,171, 52,750.72 and 12,994.80

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Solution

The fourth proportional to 35,171, 52,750.72 and 12,994.80 is: 19,490.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,171 : 52,750.72 = 12,994.80 : x
  2. Step 2: Convert to fraction form
    35,171/52,750.72 = 12,994.80/x
  3. Step 3: Cross multiply
    35,171x = 52,750.72 × 12,994.80
  4. Step 4: Simplify right side
    35,171x = 685,485,056.26
  5. Step 5: Solve for x
    x = 685,485,056.26/35,171
  6. Step 6: Final answer
    x = 19,490.06

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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.