Home / 25,157.06-34,690.15-21,121.11

Finding the Fourth Proportional to 25,157.06, 34,690.15 and 21,121.11

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Solution

The fourth proportional to 25,157.06, 34,690.15 and 21,121.11 is: 29,124.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,157.06 : 34,690.15 = 21,121.11 : x
  2. Step 2: Convert to fraction form
    25,157.06/34,690.15 = 21,121.11/x
  3. Step 3: Cross multiply
    25,157.06x = 34,690.15 × 21,121.11
  4. Step 4: Simplify right side
    25,157.06x = 732,694,334.54
  5. Step 5: Solve for x
    x = 732,694,334.54/25,157.06
  6. Step 6: Final answer
    x = 29,124.80

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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.