Home / 39,072.03-53,919.31-21,167.49

Finding the Fourth Proportional to 39,072.03, 53,919.31 and 21,167.49

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Solution

The fourth proportional to 39,072.03, 53,919.31 and 21,167.49 is: 29,211.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,072.03 : 53,919.31 = 21,167.49 : x
  2. Step 2: Convert to fraction form
    39,072.03/53,919.31 = 21,167.49/x
  3. Step 3: Cross multiply
    39,072.03x = 53,919.31 × 21,167.49
  4. Step 4: Simplify right side
    39,072.03x = 1,141,336,455.23
  5. Step 5: Solve for x
    x = 1,141,336,455.23/39,072.03
  6. Step 6: Final answer
    x = 29,211.09

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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.