Home / 21,724.92-29,958.12-19,327.32

Finding the Fourth Proportional to 21,724.92, 29,958.12 and 19,327.32

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Solution

The fourth proportional to 21,724.92, 29,958.12 and 19,327.32 is: 26,651.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,724.92 : 29,958.12 = 19,327.32 : x
  2. Step 2: Convert to fraction form
    21,724.92/29,958.12 = 19,327.32/x
  3. Step 3: Cross multiply
    21,724.92x = 29,958.12 × 19,327.32
  4. Step 4: Simplify right side
    21,724.92x = 579,010,171.84
  5. Step 5: Solve for x
    x = 579,010,171.84/21,724.92
  6. Step 6: Final answer
    x = 26,651.89

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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.