Home / 21,449.25-29,601.18-12,020.85

Finding the Fourth Proportional to 21,449.25, 29,601.18 and 12,020.85

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Solution

The fourth proportional to 21,449.25, 29,601.18 and 12,020.85 is: 16,589.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,449.25 : 29,601.18 = 12,020.85 : x
  2. Step 2: Convert to fraction form
    21,449.25/29,601.18 = 12,020.85/x
  3. Step 3: Cross multiply
    21,449.25x = 29,601.18 × 12,020.85
  4. Step 4: Simplify right side
    21,449.25x = 355,831,344.60
  5. Step 5: Solve for x
    x = 355,831,344.60/21,449.25
  6. Step 6: Final answer
    x = 16,589.45

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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.