Home / 39,551.22-54,579.87-21,645.81

Finding the Fourth Proportional to 39,551.22, 54,579.87 and 21,645.81

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Solution

The fourth proportional to 39,551.22, 54,579.87 and 21,645.81 is: 29,870.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,551.22 : 54,579.87 = 21,645.81 : x
  2. Step 2: Convert to fraction form
    39,551.22/54,579.87 = 21,645.81/x
  3. Step 3: Cross multiply
    39,551.22x = 54,579.87 × 21,645.81
  4. Step 4: Simplify right side
    39,551.22x = 1,181,425,495.84
  5. Step 5: Solve for x
    x = 1,181,425,495.84/39,551.22
  6. Step 6: Final answer
    x = 29,870.77

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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.