Home / 20,508.58-30,762.82-15,835.42

Finding the Fourth Proportional to 20,508.58, 30,762.82 and 15,835.42

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Solution

The fourth proportional to 20,508.58, 30,762.82 and 15,835.42 is: 23,753.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508.58 : 30,762.82 = 15,835.42 : x
  2. Step 2: Convert to fraction form
    20,508.58/30,762.82 = 15,835.42/x
  3. Step 3: Cross multiply
    20,508.58x = 30,762.82 × 15,835.42
  4. Step 4: Simplify right side
    20,508.58x = 487,142,175.08
  5. Step 5: Solve for x
    x = 487,142,175.08/20,508.58
  6. Step 6: Final answer
    x = 23,753.09

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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.