Home / 21,043.20-29,039.96-11,611.84

Finding the Fourth Proportional to 21,043.20, 29,039.96 and 11,611.84

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Solution

The fourth proportional to 21,043.20, 29,039.96 and 11,611.84 is: 16,024.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,043.20 : 29,039.96 = 11,611.84 : x
  2. Step 2: Convert to fraction form
    21,043.20/29,039.96 = 11,611.84/x
  3. Step 3: Cross multiply
    21,043.20x = 29,039.96 × 11,611.84
  4. Step 4: Simplify right side
    21,043.20x = 337,207,369.13
  5. Step 5: Solve for x
    x = 337,207,369.13/21,043.20
  6. Step 6: Final answer
    x = 16,024.53

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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.