Home / 39,798.43-54,920.94-21,893.04

Finding the Fourth Proportional to 39,798.43, 54,920.94 and 21,893.04

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Solution

The fourth proportional to 39,798.43, 54,920.94 and 21,893.04 is: 30,211.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,798.43 : 54,920.94 = 21,893.04 : x
  2. Step 2: Convert to fraction form
    39,798.43/54,920.94 = 21,893.04/x
  3. Step 3: Cross multiply
    39,798.43x = 54,920.94 × 21,893.04
  4. Step 4: Simplify right side
    39,798.43x = 1,202,386,254.16
  5. Step 5: Solve for x
    x = 1,202,386,254.16/39,798.43
  6. Step 6: Final answer
    x = 30,211.90

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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.