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Finding the Fourth Proportional to 34,241.40, 51,410.70 and 21,119.40

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Solution

The fourth proportional to 34,241.40, 51,410.70 and 21,119.40 is: 31,709.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,241.40 : 51,410.70 = 21,119.40 : x
  2. Step 2: Convert to fraction form
    34,241.40/51,410.70 = 21,119.40/x
  3. Step 3: Cross multiply
    34,241.40x = 51,410.70 × 21,119.40
  4. Step 4: Simplify right side
    34,241.40x = 1,085,763,137.58
  5. Step 5: Solve for x
    x = 1,085,763,137.58/34,241.40
  6. Step 6: Final answer
    x = 31,709.08

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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.