Home / 21,452.65-29,604.69-12,021.21

Finding the Fourth Proportional to 21,452.65, 29,604.69 and 12,021.21

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Solution

The fourth proportional to 21,452.65, 29,604.69 and 12,021.21 is: 16,589.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,452.65 : 29,604.69 = 12,021.21 : x
  2. Step 2: Convert to fraction form
    21,452.65/29,604.69 = 12,021.21/x
  3. Step 3: Cross multiply
    21,452.65x = 29,604.69 × 12,021.21
  4. Step 4: Simplify right side
    21,452.65x = 355,884,195.47
  5. Step 5: Solve for x
    x = 355,884,195.47/21,452.65
  6. Step 6: Final answer
    x = 16,589.29

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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.