Home / 20,410.36-28,149.58-14,380.58

Finding the Fourth Proportional to 20,410.36, 28,149.58 and 14,380.58

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Solution

The fourth proportional to 20,410.36, 28,149.58 and 14,380.58 is: 19,833.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410.36 : 28,149.58 = 14,380.58 : x
  2. Step 2: Convert to fraction form
    20,410.36/28,149.58 = 14,380.58/x
  3. Step 3: Cross multiply
    20,410.36x = 28,149.58 × 14,380.58
  4. Step 4: Simplify right side
    20,410.36x = 404,807,287.16
  5. Step 5: Solve for x
    x = 404,807,287.16/20,410.36
  6. Step 6: Final answer
    x = 19,833.42

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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.