Home / 25,861.58-35,687.97-15,806.85

Finding the Fourth Proportional to 25,861.58, 35,687.97 and 15,806.85

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Solution

The fourth proportional to 25,861.58, 35,687.97 and 15,806.85 is: 21,812.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,861.58 : 35,687.97 = 15,806.85 : x
  2. Step 2: Convert to fraction form
    25,861.58/35,687.97 = 15,806.85/x
  3. Step 3: Cross multiply
    25,861.58x = 35,687.97 × 15,806.85
  4. Step 4: Simplify right side
    25,861.58x = 564,114,210.31
  5. Step 5: Solve for x
    x = 564,114,210.31/25,861.58
  6. Step 6: Final answer
    x = 21,812.83

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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.