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Finding the Fourth Proportional to 36,167.16, 54,239.64 and 12,788.16

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Solution

The fourth proportional to 36,167.16, 54,239.64 and 12,788.16 is: 19,178.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,167.16 : 54,239.64 = 12,788.16 : x
  2. Step 2: Convert to fraction form
    36,167.16/54,239.64 = 12,788.16/x
  3. Step 3: Cross multiply
    36,167.16x = 54,239.64 × 12,788.16
  4. Step 4: Simplify right side
    36,167.16x = 693,625,194.66
  5. Step 5: Solve for x
    x = 693,625,194.66/36,167.16
  6. Step 6: Final answer
    x = 19,178.32

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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.