Home / 25,744.90-35,497.69-20,636.33

Finding the Fourth Proportional to 25,744.90, 35,497.69 and 20,636.33

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Solution

The fourth proportional to 25,744.90, 35,497.69 and 20,636.33 is: 28,453.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,744.90 : 35,497.69 = 20,636.33 : x
  2. Step 2: Convert to fraction form
    25,744.90/35,497.69 = 20,636.33/x
  3. Step 3: Cross multiply
    25,744.90x = 35,497.69 × 20,636.33
  4. Step 4: Simplify right side
    25,744.90x = 732,542,131.75
  5. Step 5: Solve for x
    x = 732,542,131.75/25,744.90
  6. Step 6: Final answer
    x = 28,453.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.