Home / 36,339.78-54,509.67-12,960.75

Finding the Fourth Proportional to 36,339.78, 54,509.67 and 12,960.75

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Solution

The fourth proportional to 36,339.78, 54,509.67 and 12,960.75 is: 19,441.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,339.78 : 54,509.67 = 12,960.75 : x
  2. Step 2: Convert to fraction form
    36,339.78/54,509.67 = 12,960.75/x
  3. Step 3: Cross multiply
    36,339.78x = 54,509.67 × 12,960.75
  4. Step 4: Simplify right side
    36,339.78x = 706,486,205.45
  5. Step 5: Solve for x
    x = 706,486,205.45/36,339.78
  6. Step 6: Final answer
    x = 19,441.13

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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.