Home / 20,035.89-30,054.11-18,818.19

Finding the Fourth Proportional to 20,035.89, 30,054.11 and 18,818.19

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Solution

The fourth proportional to 20,035.89, 30,054.11 and 18,818.19 is: 28,227.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,035.89 : 30,054.11 = 18,818.19 : x
  2. Step 2: Convert to fraction form
    20,035.89/30,054.11 = 18,818.19/x
  3. Step 3: Cross multiply
    20,035.89x = 30,054.11 × 18,818.19
  4. Step 4: Simplify right side
    20,035.89x = 565,563,858.17
  5. Step 5: Solve for x
    x = 565,563,858.17/20,035.89
  6. Step 6: Final answer
    x = 28,227.54

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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.