Home / 25,857.20-35,687.58-15,246.20

Finding the Fourth Proportional to 25,857.20, 35,687.58 and 15,246.20

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Solution

The fourth proportional to 25,857.20, 35,687.58 and 15,246.20 is: 21,042.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,857.20 : 35,687.58 = 15,246.20 : x
  2. Step 2: Convert to fraction form
    25,857.20/35,687.58 = 15,246.20/x
  3. Step 3: Cross multiply
    25,857.20x = 35,687.58 × 15,246.20
  4. Step 4: Simplify right side
    25,857.20x = 544,099,982.20
  5. Step 5: Solve for x
    x = 544,099,982.20/25,857.20
  6. Step 6: Final answer
    x = 21,042.49

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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.