Home / 28,855.30-43,289.22-8,864.86

Finding the Fourth Proportional to 28,855.30, 43,289.22 and 8,864.86

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Solution

The fourth proportional to 28,855.30, 43,289.22 and 8,864.86 is: 13,299.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,855.30 : 43,289.22 = 8,864.86 : x
  2. Step 2: Convert to fraction form
    28,855.30/43,289.22 = 8,864.86/x
  3. Step 3: Cross multiply
    28,855.30x = 43,289.22 × 8,864.86
  4. Step 4: Simplify right side
    28,855.30x = 383,752,874.81
  5. Step 5: Solve for x
    x = 383,752,874.81/28,855.30
  6. Step 6: Final answer
    x = 13,299.22

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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.