Home / 20,348.57-30,520.51-5,558.68

Finding the Fourth Proportional to 20,348.57, 30,520.51 and 5,558.68

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Solution

The fourth proportional to 20,348.57, 30,520.51 and 5,558.68 is: 8,337.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348.57 : 30,520.51 = 5,558.68 : x
  2. Step 2: Convert to fraction form
    20,348.57/30,520.51 = 5,558.68/x
  3. Step 3: Cross multiply
    20,348.57x = 30,520.51 × 5,558.68
  4. Step 4: Simplify right side
    20,348.57x = 169,653,748.53
  5. Step 5: Solve for x
    x = 169,653,748.53/20,348.57
  6. Step 6: Final answer
    x = 8,337.38

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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.