Home / 25,458.37-35,130.96-15,380.85

Finding the Fourth Proportional to 25,458.37, 35,130.96 and 15,380.85

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Solution

The fourth proportional to 25,458.37, 35,130.96 and 15,380.85 is: 21,224.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,458.37 : 35,130.96 = 15,380.85 : x
  2. Step 2: Convert to fraction form
    25,458.37/35,130.96 = 15,380.85/x
  3. Step 3: Cross multiply
    25,458.37x = 35,130.96 × 15,380.85
  4. Step 4: Simplify right side
    25,458.37x = 540,343,949.21
  5. Step 5: Solve for x
    x = 540,343,949.21/25,458.37
  6. Step 6: Final answer
    x = 21,224.61

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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.