Home / 28,361.09-42,540.80-11,708.45

Finding the Fourth Proportional to 28,361.09, 42,540.80 and 11,708.45

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Solution

The fourth proportional to 28,361.09, 42,540.80 and 11,708.45 is: 17,562.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,361.09 : 42,540.80 = 11,708.45 : x
  2. Step 2: Convert to fraction form
    28,361.09/42,540.80 = 11,708.45/x
  3. Step 3: Cross multiply
    28,361.09x = 42,540.80 × 11,708.45
  4. Step 4: Simplify right side
    28,361.09x = 498,086,718.04
  5. Step 5: Solve for x
    x = 498,086,718.04/28,361.09
  6. Step 6: Final answer
    x = 17,562.33

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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.