Home / 19,989.08-29,977.54-8,299.56

Finding the Fourth Proportional to 19,989.08, 29,977.54 and 8,299.56

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Solution

The fourth proportional to 19,989.08, 29,977.54 and 8,299.56 is: 12,446.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989.08 : 29,977.54 = 8,299.56 : x
  2. Step 2: Convert to fraction form
    19,989.08/29,977.54 = 8,299.56/x
  3. Step 3: Cross multiply
    19,989.08x = 29,977.54 × 8,299.56
  4. Step 4: Simplify right side
    19,989.08x = 248,800,391.88
  5. Step 5: Solve for x
    x = 248,800,391.88/19,989.08
  6. Step 6: Final answer
    x = 12,446.82

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1.5x scale

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.