Home / 20,015.87-30,028.09-5,977.00

Finding the Fourth Proportional to 20,015.87, 30,028.09 and 5,977.00

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Solution

The fourth proportional to 20,015.87, 30,028.09 and 5,977.00 is: 8,966.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.87 : 30,028.09 = 5,977.00 : x
  2. Step 2: Convert to fraction form
    20,015.87/30,028.09 = 5,977.00/x
  3. Step 3: Cross multiply
    20,015.87x = 30,028.09 × 5,977.00
  4. Step 4: Simplify right side
    20,015.87x = 179,477,788.97
  5. Step 5: Solve for x
    x = 179,477,788.97/20,015.87
  6. Step 6: Final answer
    x = 8,966.78

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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.