Home / 36,330.42-54,494.12-12,643.39

Finding the Fourth Proportional to 36,330.42, 54,494.12 and 12,643.39

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Solution

The fourth proportional to 36,330.42, 54,494.12 and 12,643.39 is: 18,964.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,330.42 : 54,494.12 = 12,643.39 : x
  2. Step 2: Convert to fraction form
    36,330.42/54,494.12 = 12,643.39/x
  3. Step 3: Cross multiply
    36,330.42x = 54,494.12 × 12,643.39
  4. Step 4: Simplify right side
    36,330.42x = 688,990,411.87
  5. Step 5: Solve for x
    x = 688,990,411.87/36,330.42
  6. Step 6: Final answer
    x = 18,964.56

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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.