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Finding the Fourth Proportional to 30,379.35, 41,943.02 and 19,064.37

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Solution

The fourth proportional to 30,379.35, 41,943.02 and 19,064.37 is: 26,321.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,379.35 : 41,943.02 = 19,064.37 : x
  2. Step 2: Convert to fraction form
    30,379.35/41,943.02 = 19,064.37/x
  3. Step 3: Cross multiply
    30,379.35x = 41,943.02 × 19,064.37
  4. Step 4: Simplify right side
    30,379.35x = 799,617,156.88
  5. Step 5: Solve for x
    x = 799,617,156.88/30,379.35
  6. Step 6: Final answer
    x = 26,321.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.