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Finding the Fourth Proportional to 30,395.93, 41,947.09 and 19,065.90

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Solution

The fourth proportional to 30,395.93, 41,947.09 and 19,065.90 is: 26,311.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,395.93 : 41,947.09 = 19,065.90 : x
  2. Step 2: Convert to fraction form
    30,395.93/41,947.09 = 19,065.90/x
  3. Step 3: Cross multiply
    30,395.93x = 41,947.09 × 19,065.90
  4. Step 4: Simplify right side
    30,395.93x = 799,759,240.11
  5. Step 5: Solve for x
    x = 799,759,240.11/30,395.93
  6. Step 6: Final answer
    x = 26,311.39

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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.