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Finding the Fourth Proportional to 36,019.40, 54,029.10 and 18,523.40

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Solution

The fourth proportional to 36,019.40, 54,029.10 and 18,523.40 is: 27,785.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,019.40 : 54,029.10 = 18,523.40 : x
  2. Step 2: Convert to fraction form
    36,019.40/54,029.10 = 18,523.40/x
  3. Step 3: Cross multiply
    36,019.40x = 54,029.10 × 18,523.40
  4. Step 4: Simplify right side
    36,019.40x = 1,000,802,630.94
  5. Step 5: Solve for x
    x = 1,000,802,630.94/36,019.40
  6. Step 6: Final answer
    x = 27,785.10

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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.