Home / 20,274.24-27,991.62-18,146.09

Finding the Fourth Proportional to 20,274.24, 27,991.62 and 18,146.09

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Solution

The fourth proportional to 20,274.24, 27,991.62 and 18,146.09 is: 25,053.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274.24 : 27,991.62 = 18,146.09 : x
  2. Step 2: Convert to fraction form
    20,274.24/27,991.62 = 18,146.09/x
  3. Step 3: Cross multiply
    20,274.24x = 27,991.62 × 18,146.09
  4. Step 4: Simplify right side
    20,274.24x = 507,938,225.08
  5. Step 5: Solve for x
    x = 507,938,225.08/20,274.24
  6. Step 6: Final answer
    x = 25,053.38

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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.