Home / 39,167.40-54,051.32-21,262.56

Finding the Fourth Proportional to 39,167.40, 54,051.32 and 21,262.56

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Solution

The fourth proportional to 39,167.40, 54,051.32 and 21,262.56 is: 29,342.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,167.40 : 54,051.32 = 21,262.56 : x
  2. Step 2: Convert to fraction form
    39,167.40/54,051.32 = 21,262.56/x
  3. Step 3: Cross multiply
    39,167.40x = 54,051.32 × 21,262.56
  4. Step 4: Simplify right side
    39,167.40x = 1,149,269,434.58
  5. Step 5: Solve for x
    x = 1,149,269,434.58/39,167.40
  6. Step 6: Final answer
    x = 29,342.50

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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.