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Finding the Fourth Proportional to 35,753.44, 53,630.11 and 12,379.86

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Solution

The fourth proportional to 35,753.44, 53,630.11 and 12,379.86 is: 18,569.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,753.44 : 53,630.11 = 12,379.86 : x
  2. Step 2: Convert to fraction form
    35,753.44/53,630.11 = 12,379.86/x
  3. Step 3: Cross multiply
    35,753.44x = 53,630.11 × 12,379.86
  4. Step 4: Simplify right side
    35,753.44x = 663,933,253.58
  5. Step 5: Solve for x
    x = 663,933,253.58/35,753.44
  6. Step 6: Final answer
    x = 18,569.77

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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.