Home / 36,018.54-54,033.21-12,640.86

Finding the Fourth Proportional to 36,018.54, 54,033.21 and 12,640.86

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Solution

The fourth proportional to 36,018.54, 54,033.21 and 12,640.86 is: 18,963.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,018.54 : 54,033.21 = 12,640.86 : x
  2. Step 2: Convert to fraction form
    36,018.54/54,033.21 = 12,640.86/x
  3. Step 3: Cross multiply
    36,018.54x = 54,033.21 × 12,640.86
  4. Step 4: Simplify right side
    36,018.54x = 683,026,242.96
  5. Step 5: Solve for x
    x = 683,026,242.96/36,018.54
  6. Step 6: Final answer
    x = 18,963.19

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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.