Home / 25,811.76-35,617.92-15,743.16

Finding the Fourth Proportional to 25,811.76, 35,617.92 and 15,743.16

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Solution

The fourth proportional to 25,811.76, 35,617.92 and 15,743.16 is: 21,724.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,811.76 : 35,617.92 = 15,743.16 : x
  2. Step 2: Convert to fraction form
    25,811.76/35,617.92 = 15,743.16/x
  3. Step 3: Cross multiply
    25,811.76x = 35,617.92 × 15,743.16
  4. Step 4: Simplify right side
    25,811.76x = 560,738,613.43
  5. Step 5: Solve for x
    x = 560,738,613.43/25,811.76
  6. Step 6: Final answer
    x = 21,724.15

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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.