Home / 39,582.78-54,625.29-21,678.94

Finding the Fourth Proportional to 39,582.78, 54,625.29 and 21,678.94

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Solution

The fourth proportional to 39,582.78, 54,625.29 and 21,678.94 is: 29,917.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,582.78 : 54,625.29 = 21,678.94 : x
  2. Step 2: Convert to fraction form
    39,582.78/54,625.29 = 21,678.94/x
  3. Step 3: Cross multiply
    39,582.78x = 54,625.29 × 21,678.94
  4. Step 4: Simplify right side
    39,582.78x = 1,184,218,371.38
  5. Step 5: Solve for x
    x = 1,184,218,371.38/39,582.78
  6. Step 6: Final answer
    x = 29,917.52

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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.