Home / 20,274.52-27,991.99-18,146.35

Finding the Fourth Proportional to 20,274.52, 27,991.99 and 18,146.35

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Solution

The fourth proportional to 20,274.52, 27,991.99 and 18,146.35 is: 25,053.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274.52 : 27,991.99 = 18,146.35 : x
  2. Step 2: Convert to fraction form
    20,274.52/27,991.99 = 18,146.35/x
  3. Step 3: Cross multiply
    20,274.52x = 27,991.99 × 18,146.35
  4. Step 4: Simplify right side
    20,274.52x = 507,952,317.69
  5. Step 5: Solve for x
    x = 507,952,317.69/20,274.52
  6. Step 6: Final answer
    x = 25,053.73

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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.