Home / 39,798.02-54,920.87-21,893.05

Finding the Fourth Proportional to 39,798.02, 54,920.87 and 21,893.05

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Solution

The fourth proportional to 39,798.02, 54,920.87 and 21,893.05 is: 30,212.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,798.02 : 54,920.87 = 21,893.05 : x
  2. Step 2: Convert to fraction form
    39,798.02/54,920.87 = 21,893.05/x
  3. Step 3: Cross multiply
    39,798.02x = 54,920.87 × 21,893.05
  4. Step 4: Simplify right side
    39,798.02x = 1,202,385,352.95
  5. Step 5: Solve for x
    x = 1,202,385,352.95/39,798.02
  6. Step 6: Final answer
    x = 30,212.19

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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.