Home / 21,050.42-29,049.32-11,618.78

Finding the Fourth Proportional to 21,050.42, 29,049.32 and 11,618.78

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Solution

The fourth proportional to 21,050.42, 29,049.32 and 11,618.78 is: 16,033.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,050.42 : 29,049.32 = 11,618.78 : x
  2. Step 2: Convert to fraction form
    21,050.42/29,049.32 = 11,618.78/x
  3. Step 3: Cross multiply
    21,050.42x = 29,049.32 × 11,618.78
  4. Step 4: Simplify right side
    21,050.42x = 337,517,658.23
  5. Step 5: Solve for x
    x = 337,517,658.23/21,050.42
  6. Step 6: Final answer
    x = 16,033.77

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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.