Home / 36,479.89-54,716.95-11,520.69

Finding the Fourth Proportional to 36,479.89, 54,716.95 and 11,520.69

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Solution

The fourth proportional to 36,479.89, 54,716.95 and 11,520.69 is: 17,280.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,479.89 : 54,716.95 = 11,520.69 : x
  2. Step 2: Convert to fraction form
    36,479.89/54,716.95 = 11,520.69/x
  3. Step 3: Cross multiply
    36,479.89x = 54,716.95 × 11,520.69
  4. Step 4: Simplify right side
    36,479.89x = 630,377,018.70
  5. Step 5: Solve for x
    x = 630,377,018.70/36,479.89
  6. Step 6: Final answer
    x = 17,280.12

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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.