Home / 21,241.80-29,310.84-11,808.54

Finding the Fourth Proportional to 21,241.80, 29,310.84 and 11,808.54

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Solution

The fourth proportional to 21,241.80, 29,310.84 and 11,808.54 is: 16,294.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,241.80 : 29,310.84 = 11,808.54 : x
  2. Step 2: Convert to fraction form
    21,241.80/29,310.84 = 11,808.54/x
  3. Step 3: Cross multiply
    21,241.80x = 29,310.84 × 11,808.54
  4. Step 4: Simplify right side
    21,241.80x = 346,118,226.57
  5. Step 5: Solve for x
    x = 346,118,226.57/21,241.80
  6. Step 6: Final answer
    x = 16,294.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.