Home / 18,557.85-27,830.30-8,701.77

Finding the Fourth Proportional to 18,557.85, 27,830.30 and 8,701.77

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Solution

The fourth proportional to 18,557.85, 27,830.30 and 8,701.77 is: 13,049.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,557.85 : 27,830.30 = 8,701.77 : x
  2. Step 2: Convert to fraction form
    18,557.85/27,830.30 = 8,701.77/x
  3. Step 3: Cross multiply
    18,557.85x = 27,830.30 × 8,701.77
  4. Step 4: Simplify right side
    18,557.85x = 242,172,826.12
  5. Step 5: Solve for x
    x = 242,172,826.12/18,557.85
  6. Step 6: Final answer
    x = 13,049.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.