Home / 20,581.48-30,845.10-11,225.56

Finding the Fourth Proportional to 20,581.48, 30,845.10 and 11,225.56

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Solution

The fourth proportional to 20,581.48, 30,845.10 and 11,225.56 is: 16,823.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,581.48 : 30,845.10 = 11,225.56 : x
  2. Step 2: Convert to fraction form
    20,581.48/30,845.10 = 11,225.56/x
  3. Step 3: Cross multiply
    20,581.48x = 30,845.10 × 11,225.56
  4. Step 4: Simplify right side
    20,581.48x = 346,253,520.76
  5. Step 5: Solve for x
    x = 346,253,520.76/20,581.48
  6. Step 6: Final answer
    x = 16,823.55

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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.