Home / 30,042.09-44,994.15-18,921.33

Finding the Fourth Proportional to 30,042.09, 44,994.15 and 18,921.33

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Solution

The fourth proportional to 30,042.09, 44,994.15 and 18,921.33 is: 28,338.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,042.09 : 44,994.15 = 18,921.33 : x
  2. Step 2: Convert to fraction form
    30,042.09/44,994.15 = 18,921.33/x
  3. Step 3: Cross multiply
    30,042.09x = 44,994.15 × 18,921.33
  4. Step 4: Simplify right side
    30,042.09x = 851,349,160.22
  5. Step 5: Solve for x
    x = 851,349,160.22/30,042.09
  6. Step 6: Final answer
    x = 28,338.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.