Home / 43,945.60-65,918.12-10,665.64

Finding the Fourth Proportional to 43,945.60, 65,918.12 and 10,665.64

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Solution

The fourth proportional to 43,945.60, 65,918.12 and 10,665.64 is: 15,998.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,945.60 : 65,918.12 = 10,665.64 : x
  2. Step 2: Convert to fraction form
    43,945.60/65,918.12 = 10,665.64/x
  3. Step 3: Cross multiply
    43,945.60x = 65,918.12 × 10,665.64
  4. Step 4: Simplify right side
    43,945.60x = 703,058,937.40
  5. Step 5: Solve for x
    x = 703,058,937.40/43,945.60
  6. Step 6: Final answer
    x = 15,998.39

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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.