Home / 25,650.20-38,416.87-20,963.21

Finding the Fourth Proportional to 25,650.20, 38,416.87 and 20,963.21

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Solution

The fourth proportional to 25,650.20, 38,416.87 and 20,963.21 is: 31,397.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,650.20 : 38,416.87 = 20,963.21 : x
  2. Step 2: Convert to fraction form
    25,650.20/38,416.87 = 20,963.21/x
  3. Step 3: Cross multiply
    25,650.20x = 38,416.87 × 20,963.21
  4. Step 4: Simplify right side
    25,650.20x = 805,340,629.55
  5. Step 5: Solve for x
    x = 805,340,629.55/25,650.20
  6. Step 6: Final answer
    x = 31,397.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.