Home / 39,676.02-54,752.75-21,771.33

Finding the Fourth Proportional to 39,676.02, 54,752.75 and 21,771.33

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Solution

The fourth proportional to 39,676.02, 54,752.75 and 21,771.33 is: 30,044.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,676.02 : 54,752.75 = 21,771.33 : x
  2. Step 2: Convert to fraction form
    39,676.02/54,752.75 = 21,771.33/x
  3. Step 3: Cross multiply
    39,676.02x = 54,752.75 × 21,771.33
  4. Step 4: Simplify right side
    39,676.02x = 1,192,039,914.89
  5. Step 5: Solve for x
    x = 1,192,039,914.89/39,676.02
  6. Step 6: Final answer
    x = 30,044.34

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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.