Home / 25,986.60-39,015.90-16,684.20

Finding the Fourth Proportional to 25,986.60, 39,015.90 and 16,684.20

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Solution

The fourth proportional to 25,986.60, 39,015.90 and 16,684.20 is: 25,049.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,986.60 : 39,015.90 = 16,684.20 : x
  2. Step 2: Convert to fraction form
    25,986.60/39,015.90 = 16,684.20/x
  3. Step 3: Cross multiply
    25,986.60x = 39,015.90 × 16,684.20
  4. Step 4: Simplify right side
    25,986.60x = 650,949,078.78
  5. Step 5: Solve for x
    x = 650,949,078.78/25,986.60
  6. Step 6: Final answer
    x = 25,049.41

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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.