Home / 43,278.36-64,924.20-18,318.54

Finding the Fourth Proportional to 43,278.36, 64,924.20 and 18,318.54

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Solution

The fourth proportional to 43,278.36, 64,924.20 and 18,318.54 is: 27,480.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,278.36 : 64,924.20 = 18,318.54 : x
  2. Step 2: Convert to fraction form
    43,278.36/64,924.20 = 18,318.54/x
  3. Step 3: Cross multiply
    43,278.36x = 64,924.20 × 18,318.54
  4. Step 4: Simplify right side
    43,278.36x = 1,189,316,554.67
  5. Step 5: Solve for x
    x = 1,189,316,554.67/43,278.36
  6. Step 6: Final answer
    x = 27,480.63

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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.