Home / 20,274.87-27,992.48-18,146.72

Finding the Fourth Proportional to 20,274.87, 27,992.48 and 18,146.72

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Solution

The fourth proportional to 20,274.87, 27,992.48 and 18,146.72 is: 25,054.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274.87 : 27,992.48 = 18,146.72 : x
  2. Step 2: Convert to fraction form
    20,274.87/27,992.48 = 18,146.72/x
  3. Step 3: Cross multiply
    20,274.87x = 27,992.48 × 18,146.72
  4. Step 4: Simplify right side
    20,274.87x = 507,971,465.97
  5. Step 5: Solve for x
    x = 507,971,465.97/20,274.87
  6. Step 6: Final answer
    x = 25,054.24

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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.