Home / 21,433.64-29,579.39-12,002.19

Finding the Fourth Proportional to 21,433.64, 29,579.39 and 12,002.19

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Solution

The fourth proportional to 21,433.64, 29,579.39 and 12,002.19 is: 16,563.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,433.64 : 29,579.39 = 12,002.19 : x
  2. Step 2: Convert to fraction form
    21,433.64/29,579.39 = 12,002.19/x
  3. Step 3: Cross multiply
    21,433.64x = 29,579.39 × 12,002.19
  4. Step 4: Simplify right side
    21,433.64x = 355,017,398.85
  5. Step 5: Solve for x
    x = 355,017,398.85/21,433.64
  6. Step 6: Final answer
    x = 16,563.56

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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.