Home / 28,634.91-42,944.13-11,994.54

Finding the Fourth Proportional to 28,634.91, 42,944.13 and 11,994.54

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Solution

The fourth proportional to 28,634.91, 42,944.13 and 11,994.54 is: 17,988.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,634.91 : 42,944.13 = 11,994.54 : x
  2. Step 2: Convert to fraction form
    28,634.91/42,944.13 = 11,994.54/x
  3. Step 3: Cross multiply
    28,634.91x = 42,944.13 × 11,994.54
  4. Step 4: Simplify right side
    28,634.91x = 515,095,085.05
  5. Step 5: Solve for x
    x = 515,095,085.05/28,634.91
  6. Step 6: Final answer
    x = 17,988.36

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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.