Home / 25,418.58-34,991.91-21,861.06

Finding the Fourth Proportional to 25,418.58, 34,991.91 and 21,861.06

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Solution

The fourth proportional to 25,418.58, 34,991.91 and 21,861.06 is: 30,094.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,418.58 : 34,991.91 = 21,861.06 : x
  2. Step 2: Convert to fraction form
    25,418.58/34,991.91 = 21,861.06/x
  3. Step 3: Cross multiply
    25,418.58x = 34,991.91 × 21,861.06
  4. Step 4: Simplify right side
    25,418.58x = 764,960,244.02
  5. Step 5: Solve for x
    x = 764,960,244.02/25,418.58
  6. Step 6: Final answer
    x = 30,094.53

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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.