Home / 26,212.80-39,232.80-20,337.60

Finding the Fourth Proportional to 26,212.80, 39,232.80 and 20,337.60

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Solution

The fourth proportional to 26,212.80, 39,232.80 and 20,337.60 is: 30,439.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,212.80 : 39,232.80 = 20,337.60 : x
  2. Step 2: Convert to fraction form
    26,212.80/39,232.80 = 20,337.60/x
  3. Step 3: Cross multiply
    26,212.80x = 39,232.80 × 20,337.60
  4. Step 4: Simplify right side
    26,212.80x = 797,900,993.28
  5. Step 5: Solve for x
    x = 797,900,993.28/26,212.80
  6. Step 6: Final answer
    x = 30,439.37

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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.