Home / 20,266.02-27,986.43-19,161.60

Finding the Fourth Proportional to 20,266.02, 27,986.43 and 19,161.60

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Solution

The fourth proportional to 20,266.02, 27,986.43 and 19,161.60 is: 26,461.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.02 : 27,986.43 = 19,161.60 : x
  2. Step 2: Convert to fraction form
    20,266.02/27,986.43 = 19,161.60/x
  3. Step 3: Cross multiply
    20,266.02x = 27,986.43 × 19,161.60
  4. Step 4: Simplify right side
    20,266.02x = 536,264,777.09
  5. Step 5: Solve for x
    x = 536,264,777.09/20,266.02
  6. Step 6: Final answer
    x = 26,461.28

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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.