Home / 27,707.20-38,236.18-15,771.31

Finding the Fourth Proportional to 27,707.20, 38,236.18 and 15,771.31

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Solution

The fourth proportional to 27,707.20, 38,236.18 and 15,771.31 is: 21,764.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,707.20 : 38,236.18 = 15,771.31 : x
  2. Step 2: Convert to fraction form
    27,707.20/38,236.18 = 15,771.31/x
  3. Step 3: Cross multiply
    27,707.20x = 38,236.18 × 15,771.31
  4. Step 4: Simplify right side
    27,707.20x = 603,034,597.99
  5. Step 5: Solve for x
    x = 603,034,597.99/27,707.20
  6. Step 6: Final answer
    x = 21,764.54

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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.