Home / 27,868.96-38,458.64-15,293.60

Finding the Fourth Proportional to 27,868.96, 38,458.64 and 15,293.60

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Solution

The fourth proportional to 27,868.96, 38,458.64 and 15,293.60 is: 21,104.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,868.96 : 38,458.64 = 15,293.60 : x
  2. Step 2: Convert to fraction form
    27,868.96/38,458.64 = 15,293.60/x
  3. Step 3: Cross multiply
    27,868.96x = 38,458.64 × 15,293.60
  4. Step 4: Simplify right side
    27,868.96x = 588,171,056.70
  5. Step 5: Solve for x
    x = 588,171,056.70/27,868.96
  6. Step 6: Final answer
    x = 21,104.88

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1.5x scale

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.