Home / 39,072.30-53,919.74-21,167.38

Finding the Fourth Proportional to 39,072.30, 53,919.74 and 21,167.38

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Solution

The fourth proportional to 39,072.30, 53,919.74 and 21,167.38 is: 29,210.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,072.30 : 53,919.74 = 21,167.38 : x
  2. Step 2: Convert to fraction form
    39,072.30/53,919.74 = 21,167.38/x
  3. Step 3: Cross multiply
    39,072.30x = 53,919.74 × 21,167.38
  4. Step 4: Simplify right side
    39,072.30x = 1,141,339,626.08
  5. Step 5: Solve for x
    x = 1,141,339,626.08/39,072.30
  6. Step 6: Final answer
    x = 29,210.97

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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.