Home / 39,816.59-54,947.55-21,913.43

Finding the Fourth Proportional to 39,816.59, 54,947.55 and 21,913.43

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Solution

The fourth proportional to 39,816.59, 54,947.55 and 21,913.43 is: 30,240.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,816.59 : 54,947.55 = 21,913.43 : x
  2. Step 2: Convert to fraction form
    39,816.59/54,947.55 = 21,913.43/x
  3. Step 3: Cross multiply
    39,816.59x = 54,947.55 × 21,913.43
  4. Step 4: Simplify right side
    39,816.59x = 1,204,089,290.60
  5. Step 5: Solve for x
    x = 1,204,089,290.60/39,816.59
  6. Step 6: Final answer
    x = 30,240.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.