Home / 25,815.67-35,622.45-15,203.25

Finding the Fourth Proportional to 25,815.67, 35,622.45 and 15,203.25

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Solution

The fourth proportional to 25,815.67, 35,622.45 and 15,203.25 is: 20,978.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,815.67 : 35,622.45 = 15,203.25 : x
  2. Step 2: Convert to fraction form
    25,815.67/35,622.45 = 15,203.25/x
  3. Step 3: Cross multiply
    25,815.67x = 35,622.45 × 15,203.25
  4. Step 4: Simplify right side
    25,815.67x = 541,577,012.96
  5. Step 5: Solve for x
    x = 541,577,012.96/25,815.67
  6. Step 6: Final answer
    x = 20,978.62

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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.