Home / 28,900.20-43,350.30-16,458.60

Finding the Fourth Proportional to 28,900.20, 43,350.30 and 16,458.60

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Solution

The fourth proportional to 28,900.20, 43,350.30 and 16,458.60 is: 24,687.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.20 : 43,350.30 = 16,458.60 : x
  2. Step 2: Convert to fraction form
    28,900.20/43,350.30 = 16,458.60/x
  3. Step 3: Cross multiply
    28,900.20x = 43,350.30 × 16,458.60
  4. Step 4: Simplify right side
    28,900.20x = 713,485,247.58
  5. Step 5: Solve for x
    x = 713,485,247.58/28,900.20
  6. Step 6: Final answer
    x = 24,687.90

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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.