Home / 21,724.01-29,981.57-12,293.18

Finding the Fourth Proportional to 21,724.01, 29,981.57 and 12,293.18

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Solution

The fourth proportional to 21,724.01, 29,981.57 and 12,293.18 is: 16,965.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,724.01 : 29,981.57 = 12,293.18 : x
  2. Step 2: Convert to fraction form
    21,724.01/29,981.57 = 12,293.18/x
  3. Step 3: Cross multiply
    21,724.01x = 29,981.57 × 12,293.18
  4. Step 4: Simplify right side
    21,724.01x = 368,568,625.32
  5. Step 5: Solve for x
    x = 368,568,625.32/21,724.01
  6. Step 6: Final answer
    x = 16,965.96

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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.