Home / 21,433.66-29,579.68-12,002.14

Finding the Fourth Proportional to 21,433.66, 29,579.68 and 12,002.14

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Solution

The fourth proportional to 21,433.66, 29,579.68 and 12,002.14 is: 16,563.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,433.66 : 29,579.68 = 12,002.14 : x
  2. Step 2: Convert to fraction form
    21,433.66/29,579.68 = 12,002.14/x
  3. Step 3: Cross multiply
    21,433.66x = 29,579.68 × 12,002.14
  4. Step 4: Simplify right side
    21,433.66x = 355,019,460.52
  5. Step 5: Solve for x
    x = 355,019,460.52/21,433.66
  6. Step 6: Final answer
    x = 16,563.64

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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.