Home / 25,495.56-35,183.16-15,422.40

Finding the Fourth Proportional to 25,495.56, 35,183.16 and 15,422.40

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Solution

The fourth proportional to 25,495.56, 35,183.16 and 15,422.40 is: 21,282.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,495.56 : 35,183.16 = 15,422.40 : x
  2. Step 2: Convert to fraction form
    25,495.56/35,183.16 = 15,422.40/x
  3. Step 3: Cross multiply
    25,495.56x = 35,183.16 × 15,422.40
  4. Step 4: Simplify right side
    25,495.56x = 542,608,766.78
  5. Step 5: Solve for x
    x = 542,608,766.78/25,495.56
  6. Step 6: Final answer
    x = 21,282.48

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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.