Home / 20,356.30-28,092.06-11,403.73

Finding the Fourth Proportional to 20,356.30, 28,092.06 and 11,403.73

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Solution

The fourth proportional to 20,356.30, 28,092.06 and 11,403.73 is: 15,737.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356.30 : 28,092.06 = 11,403.73 : x
  2. Step 2: Convert to fraction form
    20,356.30/28,092.06 = 11,403.73/x
  3. Step 3: Cross multiply
    20,356.30x = 28,092.06 × 11,403.73
  4. Step 4: Simplify right side
    20,356.30x = 320,354,267.38
  5. Step 5: Solve for x
    x = 320,354,267.38/20,356.30
  6. Step 6: Final answer
    x = 15,737.35

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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.