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Finding the Fourth Proportional to 21,582.01, 29,800.07 and 16,879.69

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Solution

The fourth proportional to 21,582.01, 29,800.07 and 16,879.69 is: 23,307.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,582.01 : 29,800.07 = 16,879.69 : x
  2. Step 2: Convert to fraction form
    21,582.01/29,800.07 = 16,879.69/x
  3. Step 3: Cross multiply
    21,582.01x = 29,800.07 × 16,879.69
  4. Step 4: Simplify right side
    21,582.01x = 503,015,859.18
  5. Step 5: Solve for x
    x = 503,015,859.18/21,582.01
  6. Step 6: Final answer
    x = 23,307.18

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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.