Home / 20,998.02-31,449.42-16,280.22

Finding the Fourth Proportional to 20,998.02, 31,449.42 and 16,280.22

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Solution

The fourth proportional to 20,998.02, 31,449.42 and 16,280.22 is: 24,383.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,998.02 : 31,449.42 = 16,280.22 : x
  2. Step 2: Convert to fraction form
    20,998.02/31,449.42 = 16,280.22/x
  3. Step 3: Cross multiply
    20,998.02x = 31,449.42 × 16,280.22
  4. Step 4: Simplify right side
    20,998.02x = 512,003,476.47
  5. Step 5: Solve for x
    x = 512,003,476.47/20,998.02
  6. Step 6: Final answer
    x = 24,383.42

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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.