Home / 25,422.56-35,078.64-15,348.32

Finding the Fourth Proportional to 25,422.56, 35,078.64 and 15,348.32

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Solution

The fourth proportional to 25,422.56, 35,078.64 and 15,348.32 is: 21,177.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,422.56 : 35,078.64 = 15,348.32 : x
  2. Step 2: Convert to fraction form
    25,422.56/35,078.64 = 15,348.32/x
  3. Step 3: Cross multiply
    25,422.56x = 35,078.64 × 15,348.32
  4. Step 4: Simplify right side
    25,422.56x = 538,398,191.88
  5. Step 5: Solve for x
    x = 538,398,191.88/25,422.56
  6. Step 6: Final answer
    x = 21,177.97

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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.