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Finding the Fourth Proportional to 25,293, 37,939.44 and 8,653.20

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Solution

The fourth proportional to 25,293, 37,939.44 and 8,653.20 is: 12,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,293 : 37,939.44 = 8,653.20 : x
  2. Step 2: Convert to fraction form
    25,293/37,939.44 = 8,653.20/x
  3. Step 3: Cross multiply
    25,293x = 37,939.44 × 8,653.20
  4. Step 4: Simplify right side
    25,293x = 328,297,562.21
  5. Step 5: Solve for x
    x = 328,297,562.21/25,293
  6. Step 6: Final answer
    x = 12,979.78

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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.