Home / 25,815.50-35,619.90-15,201.26

Finding the Fourth Proportional to 25,815.50, 35,619.90 and 15,201.26

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Solution

The fourth proportional to 25,815.50, 35,619.90 and 15,201.26 is: 20,974.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,815.50 : 35,619.90 = 15,201.26 : x
  2. Step 2: Convert to fraction form
    25,815.50/35,619.90 = 15,201.26/x
  3. Step 3: Cross multiply
    25,815.50x = 35,619.90 × 15,201.26
  4. Step 4: Simplify right side
    25,815.50x = 541,467,361.07
  5. Step 5: Solve for x
    x = 541,467,361.07/25,815.50
  6. Step 6: Final answer
    x = 20,974.51

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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.