Home / 39,579.48-54,618.75-21,675.24

Finding the Fourth Proportional to 39,579.48, 54,618.75 and 21,675.24

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Solution

The fourth proportional to 39,579.48, 54,618.75 and 21,675.24 is: 29,911.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,579.48 : 54,618.75 = 21,675.24 : x
  2. Step 2: Convert to fraction form
    39,579.48/54,618.75 = 21,675.24/x
  3. Step 3: Cross multiply
    39,579.48x = 54,618.75 × 21,675.24
  4. Step 4: Simplify right side
    39,579.48x = 1,183,874,514.75
  5. Step 5: Solve for x
    x = 1,183,874,514.75/39,579.48
  6. Step 6: Final answer
    x = 29,911.32

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1.5x scale

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.