Home / 20,540.19-30,810.34-5,749.24

Finding the Fourth Proportional to 20,540.19, 30,810.34 and 5,749.24

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Solution

The fourth proportional to 20,540.19, 30,810.34 and 5,749.24 is: 8,623.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,540.19 : 30,810.34 = 5,749.24 : x
  2. Step 2: Convert to fraction form
    20,540.19/30,810.34 = 5,749.24/x
  3. Step 3: Cross multiply
    20,540.19x = 30,810.34 × 5,749.24
  4. Step 4: Simplify right side
    20,540.19x = 177,136,039.14
  5. Step 5: Solve for x
    x = 177,136,039.14/20,540.19
  6. Step 6: Final answer
    x = 8,623.88

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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.