Home / 20,691.83-28,583.55-19,923.73

Finding the Fourth Proportional to 20,691.83, 28,583.55 and 19,923.73

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Solution

The fourth proportional to 20,691.83, 28,583.55 and 19,923.73 is: 27,522.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,691.83 : 28,583.55 = 19,923.73 : x
  2. Step 2: Convert to fraction form
    20,691.83/28,583.55 = 19,923.73/x
  3. Step 3: Cross multiply
    20,691.83x = 28,583.55 × 19,923.73
  4. Step 4: Simplify right side
    20,691.83x = 569,490,932.64
  5. Step 5: Solve for x
    x = 569,490,932.64/20,691.83
  6. Step 6: Final answer
    x = 27,522.50

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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.