Home / 25,107.20-37,617.60-20,700.80

Finding the Fourth Proportional to 25,107.20, 37,617.60 and 20,700.80

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Solution

The fourth proportional to 25,107.20, 37,617.60 and 20,700.80 is: 31,015.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,107.20 : 37,617.60 = 20,700.80 : x
  2. Step 2: Convert to fraction form
    25,107.20/37,617.60 = 20,700.80/x
  3. Step 3: Cross multiply
    25,107.20x = 37,617.60 × 20,700.80
  4. Step 4: Simplify right side
    25,107.20x = 778,714,414.08
  5. Step 5: Solve for x
    x = 778,714,414.08/25,107.20
  6. Step 6: Final answer
    x = 31,015.58

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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.