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Finding the Fourth Proportional to 36,138.32, 54,128.53 and 15,014.32

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Solution

The fourth proportional to 36,138.32, 54,128.53 and 15,014.32 is: 22,488.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,138.32 : 54,128.53 = 15,014.32 : x
  2. Step 2: Convert to fraction form
    36,138.32/54,128.53 = 15,014.32/x
  3. Step 3: Cross multiply
    36,138.32x = 54,128.53 × 15,014.32
  4. Step 4: Simplify right side
    36,138.32x = 812,702,954.00
  5. Step 5: Solve for x
    x = 812,702,954.00/36,138.32
  6. Step 6: Final answer
    x = 22,488.68

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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.