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Finding the Fourth Proportional to 15,375.25, 23,062.88 and 4,431.25

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Solution

The fourth proportional to 15,375.25, 23,062.88 and 4,431.25 is: 6,646.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,375.25 : 23,062.88 = 4,431.25 : x
  2. Step 2: Convert to fraction form
    15,375.25/23,062.88 = 4,431.25/x
  3. Step 3: Cross multiply
    15,375.25x = 23,062.88 × 4,431.25
  4. Step 4: Simplify right side
    15,375.25x = 102,197,364.84
  5. Step 5: Solve for x
    x = 102,197,364.84/15,375.25
  6. Step 6: Final answer
    x = 6,646.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.