Home / 21,043.53-29,040.12-11,611.89

Finding the Fourth Proportional to 21,043.53, 29,040.12 and 11,611.89

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Solution

The fourth proportional to 21,043.53, 29,040.12 and 11,611.89 is: 16,024.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,043.53 : 29,040.12 = 11,611.89 : x
  2. Step 2: Convert to fraction form
    21,043.53/29,040.12 = 11,611.89/x
  3. Step 3: Cross multiply
    21,043.53x = 29,040.12 × 11,611.89
  4. Step 4: Simplify right side
    21,043.53x = 337,210,679.03
  5. Step 5: Solve for x
    x = 337,210,679.03/21,043.53
  6. Step 6: Final answer
    x = 16,024.44

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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.