Home / 27,949.51-38,570.46-15,202.78

Finding the Fourth Proportional to 27,949.51, 38,570.46 and 15,202.78

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Solution

The fourth proportional to 27,949.51, 38,570.46 and 15,202.78 is: 20,979.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,949.51 : 38,570.46 = 15,202.78 : x
  2. Step 2: Convert to fraction form
    27,949.51/38,570.46 = 15,202.78/x
  3. Step 3: Cross multiply
    27,949.51x = 38,570.46 × 15,202.78
  4. Step 4: Simplify right side
    27,949.51x = 586,378,025.03
  5. Step 5: Solve for x
    x = 586,378,025.03/27,949.51
  6. Step 6: Final answer
    x = 20,979.91

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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.