Home / 38,588.28-57,886.68-12,286.88

Finding the Fourth Proportional to 38,588.28, 57,886.68 and 12,286.88

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Solution

The fourth proportional to 38,588.28, 57,886.68 and 12,286.88 is: 18,431.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,588.28 : 57,886.68 = 12,286.88 : x
  2. Step 2: Convert to fraction form
    38,588.28/57,886.68 = 12,286.88/x
  3. Step 3: Cross multiply
    38,588.28x = 57,886.68 × 12,286.88
  4. Step 4: Simplify right side
    38,588.28x = 711,246,690.76
  5. Step 5: Solve for x
    x = 711,246,690.76/38,588.28
  6. Step 6: Final answer
    x = 18,431.68

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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.