Home / 39,474.24-54,474.32-21,569.39

Finding the Fourth Proportional to 39,474.24, 54,474.32 and 21,569.39

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Solution

The fourth proportional to 39,474.24, 54,474.32 and 21,569.39 is: 29,765.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,474.24 : 54,474.32 = 21,569.39 : x
  2. Step 2: Convert to fraction form
    39,474.24/54,474.32 = 21,569.39/x
  3. Step 3: Cross multiply
    39,474.24x = 54,474.32 × 21,569.39
  4. Step 4: Simplify right side
    39,474.24x = 1,174,977,881.40
  5. Step 5: Solve for x
    x = 1,174,977,881.40/39,474.24
  6. Step 6: Final answer
    x = 29,765.69

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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.