Home / 27,746.14-38,289.80-15,170.88

Finding the Fourth Proportional to 27,746.14, 38,289.80 and 15,170.88

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Solution

The fourth proportional to 27,746.14, 38,289.80 and 15,170.88 is: 20,935.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,746.14 : 38,289.80 = 15,170.88 : x
  2. Step 2: Convert to fraction form
    27,746.14/38,289.80 = 15,170.88/x
  3. Step 3: Cross multiply
    27,746.14x = 38,289.80 × 15,170.88
  4. Step 4: Simplify right side
    27,746.14x = 580,889,961.02
  5. Step 5: Solve for x
    x = 580,889,961.02/27,746.14
  6. Step 6: Final answer
    x = 20,935.88

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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.