Home / 20,359.59-28,083.82-13,460.73

Finding the Fourth Proportional to 20,359.59, 28,083.82 and 13,460.73

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Solution

The fourth proportional to 20,359.59, 28,083.82 and 13,460.73 is: 18,567.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,359.59 : 28,083.82 = 13,460.73 : x
  2. Step 2: Convert to fraction form
    20,359.59/28,083.82 = 13,460.73/x
  3. Step 3: Cross multiply
    20,359.59x = 28,083.82 × 13,460.73
  4. Step 4: Simplify right side
    20,359.59x = 378,028,651.08
  5. Step 5: Solve for x
    x = 378,028,651.08/20,359.59
  6. Step 6: Final answer
    x = 18,567.60

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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.