Home / 27,790.06-38,351.25-15,214.90

Finding the Fourth Proportional to 27,790.06, 38,351.25 and 15,214.90

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Solution

The fourth proportional to 27,790.06, 38,351.25 and 15,214.90 is: 20,997.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,790.06 : 38,351.25 = 15,214.90 : x
  2. Step 2: Convert to fraction form
    27,790.06/38,351.25 = 15,214.90/x
  3. Step 3: Cross multiply
    27,790.06x = 38,351.25 × 15,214.90
  4. Step 4: Simplify right side
    27,790.06x = 583,510,433.63
  5. Step 5: Solve for x
    x = 583,510,433.63/27,790.06
  6. Step 6: Final answer
    x = 20,997.09

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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.