Home / 20,558.38-30,819.06-7,401.50

Finding the Fourth Proportional to 20,558.38, 30,819.06 and 7,401.50

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Solution

The fourth proportional to 20,558.38, 30,819.06 and 7,401.50 is: 11,095.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.38 : 30,819.06 = 7,401.50 : x
  2. Step 2: Convert to fraction form
    20,558.38/30,819.06 = 7,401.50/x
  3. Step 3: Cross multiply
    20,558.38x = 30,819.06 × 7,401.50
  4. Step 4: Simplify right side
    20,558.38x = 228,107,272.59
  5. Step 5: Solve for x
    x = 228,107,272.59/20,558.38
  6. Step 6: Final answer
    x = 11,095.59

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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.