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Finding the Fourth Proportional to 26,404.80, 39,628.80 and 25,540.80

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Solution

The fourth proportional to 26,404.80, 39,628.80 and 25,540.80 is: 38,332.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,404.80 : 39,628.80 = 25,540.80 : x
  2. Step 2: Convert to fraction form
    26,404.80/39,628.80 = 25,540.80/x
  3. Step 3: Cross multiply
    26,404.80x = 39,628.80 × 25,540.80
  4. Step 4: Simplify right side
    26,404.80x = 1,012,151,255.04
  5. Step 5: Solve for x
    x = 1,012,151,255.04/26,404.80
  6. Step 6: Final answer
    x = 38,332.09

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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.