Home / 26,021.12-39,118.08-20,180.48

Finding the Fourth Proportional to 26,021.12, 39,118.08 and 20,180.48

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Solution

The fourth proportional to 26,021.12, 39,118.08 and 20,180.48 is: 30,337.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,021.12 : 39,118.08 = 20,180.48 : x
  2. Step 2: Convert to fraction form
    26,021.12/39,118.08 = 20,180.48/x
  3. Step 3: Cross multiply
    26,021.12x = 39,118.08 × 20,180.48
  4. Step 4: Simplify right side
    26,021.12x = 789,421,631.08
  5. Step 5: Solve for x
    x = 789,421,631.08/26,021.12
  6. Step 6: Final answer
    x = 30,337.73

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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.