Home / 43,809.24-65,725.38-12,647.64

Finding the Fourth Proportional to 43,809.24, 65,725.38 and 12,647.64

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Solution

The fourth proportional to 43,809.24, 65,725.38 and 12,647.64 is: 18,974.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,809.24 : 65,725.38 = 12,647.64 : x
  2. Step 2: Convert to fraction form
    43,809.24/65,725.38 = 12,647.64/x
  3. Step 3: Cross multiply
    43,809.24x = 65,725.38 × 12,647.64
  4. Step 4: Simplify right side
    43,809.24x = 831,270,945.10
  5. Step 5: Solve for x
    x = 831,270,945.10/43,809.24
  6. Step 6: Final answer
    x = 18,974.79

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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.