Home / 20,274.74-27,992.31-18,146.59

Finding the Fourth Proportional to 20,274.74, 27,992.31 and 18,146.59

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Solution

The fourth proportional to 20,274.74, 27,992.31 and 18,146.59 is: 25,054.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274.74 : 27,992.31 = 18,146.59 : x
  2. Step 2: Convert to fraction form
    20,274.74/27,992.31 = 18,146.59/x
  3. Step 3: Cross multiply
    20,274.74x = 27,992.31 × 18,146.59
  4. Step 4: Simplify right side
    20,274.74x = 507,964,742.03
  5. Step 5: Solve for x
    x = 507,964,742.03/20,274.74
  6. Step 6: Final answer
    x = 25,054.07

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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.