Home / 27,115.76-37,419.74-15,179.10

Finding the Fourth Proportional to 27,115.76, 37,419.74 and 15,179.10

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Solution

The fourth proportional to 27,115.76, 37,419.74 and 15,179.10 is: 20,947.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,115.76 : 37,419.74 = 15,179.10 : x
  2. Step 2: Convert to fraction form
    27,115.76/37,419.74 = 15,179.10/x
  3. Step 3: Cross multiply
    27,115.76x = 37,419.74 × 15,179.10
  4. Step 4: Simplify right side
    27,115.76x = 567,997,975.43
  5. Step 5: Solve for x
    x = 567,997,975.43/27,115.76
  6. Step 6: Final answer
    x = 20,947.15

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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.