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Finding the Fourth Proportional to 36,161.70, 54,230.40 and 12,782.67

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Solution

The fourth proportional to 36,161.70, 54,230.40 and 12,782.67 is: 19,169.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,161.70 : 54,230.40 = 12,782.67 : x
  2. Step 2: Convert to fraction form
    36,161.70/54,230.40 = 12,782.67/x
  3. Step 3: Cross multiply
    36,161.70x = 54,230.40 × 12,782.67
  4. Step 4: Simplify right side
    36,161.70x = 693,209,307.17
  5. Step 5: Solve for x
    x = 693,209,307.17/36,161.70
  6. Step 6: Final answer
    x = 19,169.71

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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.