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Finding the Fourth Proportional to 36,008.54, 54,018.22 and 12,630.86

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Solution

The fourth proportional to 36,008.54, 54,018.22 and 12,630.86 is: 18,948.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,008.54 : 54,018.22 = 12,630.86 : x
  2. Step 2: Convert to fraction form
    36,008.54/54,018.22 = 12,630.86/x
  3. Step 3: Cross multiply
    36,008.54x = 54,018.22 × 12,630.86
  4. Step 4: Simplify right side
    36,008.54x = 682,296,574.27
  5. Step 5: Solve for x
    x = 682,296,574.27/36,008.54
  6. Step 6: Final answer
    x = 18,948.19

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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.