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Finding the Fourth Proportional to 22,230.88, 30,660.90 and 18,884.77

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Solution

The fourth proportional to 22,230.88, 30,660.90 and 18,884.77 is: 26,045.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,230.88 : 30,660.90 = 18,884.77 : x
  2. Step 2: Convert to fraction form
    22,230.88/30,660.90 = 18,884.77/x
  3. Step 3: Cross multiply
    22,230.88x = 30,660.90 × 18,884.77
  4. Step 4: Simplify right side
    22,230.88x = 579,023,897.02
  5. Step 5: Solve for x
    x = 579,023,897.02/22,230.88
  6. Step 6: Final answer
    x = 26,045.93

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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.