Home / 20,508.60-30,762.92-5,717.56

Finding the Fourth Proportional to 20,508.60, 30,762.92 and 5,717.56

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Solution

The fourth proportional to 20,508.60, 30,762.92 and 5,717.56 is: 8,576.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508.60 : 30,762.92 = 5,717.56 : x
  2. Step 2: Convert to fraction form
    20,508.60/30,762.92 = 5,717.56/x
  3. Step 3: Cross multiply
    20,508.60x = 30,762.92 × 5,717.56
  4. Step 4: Simplify right side
    20,508.60x = 175,888,840.88
  5. Step 5: Solve for x
    x = 175,888,840.88/20,508.60
  6. Step 6: Final answer
    x = 8,576.35

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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.