Home / 20,690.83-28,582.17-19,922.73

Finding the Fourth Proportional to 20,690.83, 28,582.17 and 19,922.73

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Solution

The fourth proportional to 20,690.83, 28,582.17 and 19,922.73 is: 27,521.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,690.83 : 28,582.17 = 19,922.73 : x
  2. Step 2: Convert to fraction form
    20,690.83/28,582.17 = 19,922.73/x
  3. Step 3: Cross multiply
    20,690.83x = 28,582.17 × 19,922.73
  4. Step 4: Simplify right side
    20,690.83x = 569,435,000.26
  5. Step 5: Solve for x
    x = 569,435,000.26/20,690.83
  6. Step 6: Final answer
    x = 27,521.12

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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.