Home / 28,215.86-42,324.66-8,494.56

Finding the Fourth Proportional to 28,215.86, 42,324.66 and 8,494.56

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Solution

The fourth proportional to 28,215.86, 42,324.66 and 8,494.56 is: 12,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,215.86 : 42,324.66 = 8,494.56 : x
  2. Step 2: Convert to fraction form
    28,215.86/42,324.66 = 8,494.56/x
  3. Step 3: Cross multiply
    28,215.86x = 42,324.66 × 8,494.56
  4. Step 4: Simplify right side
    28,215.86x = 359,529,363.85
  5. Step 5: Solve for x
    x = 359,529,363.85/28,215.86
  6. Step 6: Final answer
    x = 12,742.10

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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.