Home / 39,187.85-54,079.73-21,283.16

Finding the Fourth Proportional to 39,187.85, 54,079.73 and 21,283.16

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Solution

The fourth proportional to 39,187.85, 54,079.73 and 21,283.16 is: 29,371.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,187.85 : 54,079.73 = 21,283.16 : x
  2. Step 2: Convert to fraction form
    39,187.85/54,079.73 = 21,283.16/x
  3. Step 3: Cross multiply
    39,187.85x = 54,079.73 × 21,283.16
  4. Step 4: Simplify right side
    39,187.85x = 1,150,987,189.49
  5. Step 5: Solve for x
    x = 1,150,987,189.49/39,187.85
  6. Step 6: Final answer
    x = 29,371.02

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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.