Home / 20,650.80-30,977.38-5,858.55

Finding the Fourth Proportional to 20,650.80, 30,977.38 and 5,858.55

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Solution

The fourth proportional to 20,650.80, 30,977.38 and 5,858.55 is: 8,788.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650.80 : 30,977.38 = 5,858.55 : x
  2. Step 2: Convert to fraction form
    20,650.80/30,977.38 = 5,858.55/x
  3. Step 3: Cross multiply
    20,650.80x = 30,977.38 × 5,858.55
  4. Step 4: Simplify right side
    20,650.80x = 181,482,529.60
  5. Step 5: Solve for x
    x = 181,482,529.60/20,650.80
  6. Step 6: Final answer
    x = 8,788.16

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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.