Home / 21,724.92-29,980.85-12,293.48

Finding the Fourth Proportional to 21,724.92, 29,980.85 and 12,293.48

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Solution

The fourth proportional to 21,724.92, 29,980.85 and 12,293.48 is: 16,965.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,724.92 : 29,980.85 = 12,293.48 : x
  2. Step 2: Convert to fraction form
    21,724.92/29,980.85 = 12,293.48/x
  3. Step 3: Cross multiply
    21,724.92x = 29,980.85 × 12,293.48
  4. Step 4: Simplify right side
    21,724.92x = 368,568,979.86
  5. Step 5: Solve for x
    x = 368,568,979.86/21,724.92
  6. Step 6: Final answer
    x = 16,965.26

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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.