Home / 39,487.44-54,491.73-21,582.54

Finding the Fourth Proportional to 39,487.44, 54,491.73 and 21,582.54

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Solution

The fourth proportional to 39,487.44, 54,491.73 and 21,582.54 is: 29,783.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,487.44 : 54,491.73 = 21,582.54 : x
  2. Step 2: Convert to fraction form
    39,487.44/54,491.73 = 21,582.54/x
  3. Step 3: Cross multiply
    39,487.44x = 54,491.73 × 21,582.54
  4. Step 4: Simplify right side
    39,487.44x = 1,176,069,942.39
  5. Step 5: Solve for x
    x = 1,176,069,942.39/39,487.44
  6. Step 6: Final answer
    x = 29,783.39

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1.5x scale

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.