Home / 39,794.16-54,916.06-21,890.30

Finding the Fourth Proportional to 39,794.16, 54,916.06 and 21,890.30

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Solution

The fourth proportional to 39,794.16, 54,916.06 and 21,890.30 is: 30,208.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,794.16 : 54,916.06 = 21,890.30 : x
  2. Step 2: Convert to fraction form
    39,794.16/54,916.06 = 21,890.30/x
  3. Step 3: Cross multiply
    39,794.16x = 54,916.06 × 21,890.30
  4. Step 4: Simplify right side
    39,794.16x = 1,202,129,028.22
  5. Step 5: Solve for x
    x = 1,202,129,028.22/39,794.16
  6. Step 6: Final answer
    x = 30,208.68

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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.