Home / 28,998.42-40,003.30-18,371.22

Finding the Fourth Proportional to 28,998.42, 40,003.30 and 18,371.22

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Solution

The fourth proportional to 28,998.42, 40,003.30 and 18,371.22 is: 25,343.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,998.42 : 40,003.30 = 18,371.22 : x
  2. Step 2: Convert to fraction form
    28,998.42/40,003.30 = 18,371.22/x
  3. Step 3: Cross multiply
    28,998.42x = 40,003.30 × 18,371.22
  4. Step 4: Simplify right side
    28,998.42x = 734,909,425.03
  5. Step 5: Solve for x
    x = 734,909,425.03/28,998.42
  6. Step 6: Final answer
    x = 25,343.09

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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.