Home / 25,376.92-34,997.01-21,790.75

Finding the Fourth Proportional to 25,376.92, 34,997.01 and 21,790.75

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Solution

The fourth proportional to 25,376.92, 34,997.01 and 21,790.75 is: 30,051.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,376.92 : 34,997.01 = 21,790.75 : x
  2. Step 2: Convert to fraction form
    25,376.92/34,997.01 = 21,790.75/x
  3. Step 3: Cross multiply
    25,376.92x = 34,997.01 × 21,790.75
  4. Step 4: Simplify right side
    25,376.92x = 762,611,095.66
  5. Step 5: Solve for x
    x = 762,611,095.66/25,376.92
  6. Step 6: Final answer
    x = 30,051.37

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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.