Home / 39,776.44-54,890.08-21,871.32

Finding the Fourth Proportional to 39,776.44, 54,890.08 and 21,871.32

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Solution

The fourth proportional to 39,776.44, 54,890.08 and 21,871.32 is: 30,181.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,776.44 : 54,890.08 = 21,871.32 : x
  2. Step 2: Convert to fraction form
    39,776.44/54,890.08 = 21,871.32/x
  3. Step 3: Cross multiply
    39,776.44x = 54,890.08 × 21,871.32
  4. Step 4: Simplify right side
    39,776.44x = 1,200,518,504.51
  5. Step 5: Solve for x
    x = 1,200,518,504.51/39,776.44
  6. Step 6: Final answer
    x = 30,181.65

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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.