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Finding the Fourth Proportional to 38,615.04, 57,927.12 and 12,310.56

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Solution

The fourth proportional to 38,615.04, 57,927.12 and 12,310.56 is: 18,467.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,615.04 : 57,927.12 = 12,310.56 : x
  2. Step 2: Convert to fraction form
    38,615.04/57,927.12 = 12,310.56/x
  3. Step 3: Cross multiply
    38,615.04x = 57,927.12 × 12,310.56
  4. Step 4: Simplify right side
    38,615.04x = 713,115,286.39
  5. Step 5: Solve for x
    x = 713,115,286.39/38,615.04
  6. Step 6: Final answer
    x = 18,467.29

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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.