Home / 43,918.08-65,857.20-18,946.32

Finding the Fourth Proportional to 43,918.08, 65,857.20 and 18,946.32

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Solution

The fourth proportional to 43,918.08, 65,857.20 and 18,946.32 is: 28,410.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,918.08 : 65,857.20 = 18,946.32 : x
  2. Step 2: Convert to fraction form
    43,918.08/65,857.20 = 18,946.32/x
  3. Step 3: Cross multiply
    43,918.08x = 65,857.20 × 18,946.32
  4. Step 4: Simplify right side
    43,918.08x = 1,247,751,585.50
  5. Step 5: Solve for x
    x = 1,247,751,585.50/43,918.08
  6. Step 6: Final answer
    x = 28,410.89

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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.