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Finding the Fourth Proportional to 27,103.80, 40,650.96 and 7,379.76

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Solution

The fourth proportional to 27,103.80, 40,650.96 and 7,379.76 is: 11,068.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,103.80 : 40,650.96 = 7,379.76 : x
  2. Step 2: Convert to fraction form
    27,103.80/40,650.96 = 7,379.76/x
  3. Step 3: Cross multiply
    27,103.80x = 40,650.96 × 7,379.76
  4. Step 4: Simplify right side
    27,103.80x = 299,994,328.57
  5. Step 5: Solve for x
    x = 299,994,328.57/27,103.80
  6. Step 6: Final answer
    x = 11,068.35

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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.