Home / 43,383.78-65,085.69-18,424.64

Finding the Fourth Proportional to 43,383.78, 65,085.69 and 18,424.64

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Solution

The fourth proportional to 43,383.78, 65,085.69 and 18,424.64 is: 27,641.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,383.78 : 65,085.69 = 18,424.64 : x
  2. Step 2: Convert to fraction form
    43,383.78/65,085.69 = 18,424.64/x
  3. Step 3: Cross multiply
    43,383.78x = 65,085.69 × 18,424.64
  4. Step 4: Simplify right side
    43,383.78x = 1,199,180,639.21
  5. Step 5: Solve for x
    x = 1,199,180,639.21/43,383.78
  6. Step 6: Final answer
    x = 27,641.22

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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.