Home / 21,452.20-29,604.04-12,020.84

Finding the Fourth Proportional to 21,452.20, 29,604.04 and 12,020.84

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Solution

The fourth proportional to 21,452.20, 29,604.04 and 12,020.84 is: 16,588.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,452.20 : 29,604.04 = 12,020.84 : x
  2. Step 2: Convert to fraction form
    21,452.20/29,604.04 = 12,020.84/x
  3. Step 3: Cross multiply
    21,452.20x = 29,604.04 × 12,020.84
  4. Step 4: Simplify right side
    21,452.20x = 355,865,428.19
  5. Step 5: Solve for x
    x = 355,865,428.19/21,452.20
  6. Step 6: Final answer
    x = 16,588.76

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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.