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Finding the Fourth Proportional to 25,498.32, 35,157.24 and 21,955.44

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Solution

The fourth proportional to 25,498.32, 35,157.24 and 21,955.44 is: 30,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,498.32 : 35,157.24 = 21,955.44 : x
  2. Step 2: Convert to fraction form
    25,498.32/35,157.24 = 21,955.44/x
  3. Step 3: Cross multiply
    25,498.32x = 35,157.24 × 21,955.44
  4. Step 4: Simplify right side
    25,498.32x = 771,892,673.39
  5. Step 5: Solve for x
    x = 771,892,673.39/25,498.32
  6. Step 6: Final answer
    x = 30,272.30

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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.