Home / 21,452.20-29,602.42-12,018.94

Finding the Fourth Proportional to 21,452.20, 29,602.42 and 12,018.94

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Solution

The fourth proportional to 21,452.20, 29,602.42 and 12,018.94 is: 16,585.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,452.20 : 29,602.42 = 12,018.94 : x
  2. Step 2: Convert to fraction form
    21,452.20/29,602.42 = 12,018.94/x
  3. Step 3: Cross multiply
    21,452.20x = 29,602.42 × 12,018.94
  4. Step 4: Simplify right side
    21,452.20x = 355,789,605.78
  5. Step 5: Solve for x
    x = 355,789,605.78/21,452.20
  6. Step 6: Final answer
    x = 16,585.23

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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.