Home / 39,581.07-54,621.44-21,675.00

Finding the Fourth Proportional to 39,581.07, 54,621.44 and 21,675.00

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Solution

The fourth proportional to 39,581.07, 54,621.44 and 21,675.00 is: 29,911.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,581.07 : 54,621.44 = 21,675.00 : x
  2. Step 2: Convert to fraction form
    39,581.07/54,621.44 = 21,675.00/x
  3. Step 3: Cross multiply
    39,581.07x = 54,621.44 × 21,675.00
  4. Step 4: Simplify right side
    39,581.07x = 1,183,919,889.74
  5. Step 5: Solve for x
    x = 1,183,919,889.74/39,581.07
  6. Step 6: Final answer
    x = 29,911.27

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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.