Home / 21,724.17-29,979.81-12,292.73

Finding the Fourth Proportional to 21,724.17, 29,979.81 and 12,292.73

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Solution

The fourth proportional to 21,724.17, 29,979.81 and 12,292.73 is: 16,964.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,724.17 : 29,979.81 = 12,292.73 : x
  2. Step 2: Convert to fraction form
    21,724.17/29,979.81 = 12,292.73/x
  3. Step 3: Cross multiply
    21,724.17x = 29,979.81 × 12,292.73
  4. Step 4: Simplify right side
    21,724.17x = 368,533,709.78
  5. Step 5: Solve for x
    x = 368,533,709.78/21,724.17
  6. Step 6: Final answer
    x = 16,964.23

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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.