Home / 26,063.55-39,076.80-21,122.30

Finding the Fourth Proportional to 26,063.55, 39,076.80 and 21,122.30

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Solution

The fourth proportional to 26,063.55, 39,076.80 and 21,122.30 is: 31,668.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,063.55 : 39,076.80 = 21,122.30 : x
  2. Step 2: Convert to fraction form
    26,063.55/39,076.80 = 21,122.30/x
  3. Step 3: Cross multiply
    26,063.55x = 39,076.80 × 21,122.30
  4. Step 4: Simplify right side
    26,063.55x = 825,391,697.26
  5. Step 5: Solve for x
    x = 825,391,697.26/26,063.55
  6. Step 6: Final answer
    x = 31,668.43

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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.