Home / 20,350.02-28,099.27-13,550.68

Finding the Fourth Proportional to 20,350.02, 28,099.27 and 13,550.68

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Solution

The fourth proportional to 20,350.02, 28,099.27 and 13,550.68 is: 18,710.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,350.02 : 28,099.27 = 13,550.68 : x
  2. Step 2: Convert to fraction form
    20,350.02/28,099.27 = 13,550.68/x
  3. Step 3: Cross multiply
    20,350.02x = 28,099.27 × 13,550.68
  4. Step 4: Simplify right side
    20,350.02x = 380,764,216.00
  5. Step 5: Solve for x
    x = 380,764,216.00/20,350.02
  6. Step 6: Final answer
    x = 18,710.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.