Home / 20,193.83-30,288.35-5,403.89

Finding the Fourth Proportional to 20,193.83, 30,288.35 and 5,403.89

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Solution

The fourth proportional to 20,193.83, 30,288.35 and 5,403.89 is: 8,105.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193.83 : 30,288.35 = 5,403.89 : x
  2. Step 2: Convert to fraction form
    20,193.83/30,288.35 = 5,403.89/x
  3. Step 3: Cross multiply
    20,193.83x = 30,288.35 × 5,403.89
  4. Step 4: Simplify right side
    20,193.83x = 163,674,733.22
  5. Step 5: Solve for x
    x = 163,674,733.22/20,193.83
  6. Step 6: Final answer
    x = 8,105.19

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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.