Home / 39,669.63-54,742.28-21,764.27

Finding the Fourth Proportional to 39,669.63, 54,742.28 and 21,764.27

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Solution

The fourth proportional to 39,669.63, 54,742.28 and 21,764.27 is: 30,033.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,669.63 : 54,742.28 = 21,764.27 : x
  2. Step 2: Convert to fraction form
    39,669.63/54,742.28 = 21,764.27/x
  3. Step 3: Cross multiply
    39,669.63x = 54,742.28 × 21,764.27
  4. Step 4: Simplify right side
    39,669.63x = 1,191,425,379.80
  5. Step 5: Solve for x
    x = 1,191,425,379.80/39,669.63
  6. Step 6: Final answer
    x = 30,033.69

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