Home / 43,939.94-65,921.15-12,775.19

Finding the Fourth Proportional to 43,939.94, 65,921.15 and 12,775.19

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Solution

The fourth proportional to 43,939.94, 65,921.15 and 12,775.19 is: 19,166.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,939.94 : 65,921.15 = 12,775.19 : x
  2. Step 2: Convert to fraction form
    43,939.94/65,921.15 = 12,775.19/x
  3. Step 3: Cross multiply
    43,939.94x = 65,921.15 × 12,775.19
  4. Step 4: Simplify right side
    43,939.94x = 842,155,152.39
  5. Step 5: Solve for x
    x = 842,155,152.39/43,939.94
  6. Step 6: Final answer
    x = 19,166.05

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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.