Home / 27,949.32-38,570.55-15,202.78

Finding the Fourth Proportional to 27,949.32, 38,570.55 and 15,202.78

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Solution

The fourth proportional to 27,949.32, 38,570.55 and 15,202.78 is: 20,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,949.32 : 38,570.55 = 15,202.78 : x
  2. Step 2: Convert to fraction form
    27,949.32/38,570.55 = 15,202.78/x
  3. Step 3: Cross multiply
    27,949.32x = 38,570.55 × 15,202.78
  4. Step 4: Simplify right side
    27,949.32x = 586,379,586.13
  5. Step 5: Solve for x
    x = 586,379,586.13/27,949.32
  6. Step 6: Final answer
    x = 20,980.10

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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.