Home / 26,381.52-39,522.56-20,509.60

Finding the Fourth Proportional to 26,381.52, 39,522.56 and 20,509.60

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Solution

The fourth proportional to 26,381.52, 39,522.56 and 20,509.60 is: 30,725.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,381.52 : 39,522.56 = 20,509.60 : x
  2. Step 2: Convert to fraction form
    26,381.52/39,522.56 = 20,509.60/x
  3. Step 3: Cross multiply
    26,381.52x = 39,522.56 × 20,509.60
  4. Step 4: Simplify right side
    26,381.52x = 810,591,896.58
  5. Step 5: Solve for x
    x = 810,591,896.58/26,381.52
  6. Step 6: Final answer
    x = 30,725.75

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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.