Home / 18,505.28-27,782.58-15,749.66

Finding the Fourth Proportional to 18,505.28, 27,782.58 and 15,749.66

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Solution

The fourth proportional to 18,505.28, 27,782.58 and 15,749.66 is: 23,645.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,505.28 : 27,782.58 = 15,749.66 : x
  2. Step 2: Convert to fraction form
    18,505.28/27,782.58 = 15,749.66/x
  3. Step 3: Cross multiply
    18,505.28x = 27,782.58 × 15,749.66
  4. Step 4: Simplify right side
    18,505.28x = 437,566,188.92
  5. Step 5: Solve for x
    x = 437,566,188.92/18,505.28
  6. Step 6: Final answer
    x = 23,645.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.