Home / 28,051.88-42,133.86-17,540.60

Finding the Fourth Proportional to 28,051.88, 42,133.86 and 17,540.60

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Solution

The fourth proportional to 28,051.88, 42,133.86 and 17,540.60 is: 26,345.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.88 : 42,133.86 = 17,540.60 : x
  2. Step 2: Convert to fraction form
    28,051.88/42,133.86 = 17,540.60/x
  3. Step 3: Cross multiply
    28,051.88x = 42,133.86 × 17,540.60
  4. Step 4: Simplify right side
    28,051.88x = 739,052,974.05
  5. Step 5: Solve for x
    x = 739,052,974.05/28,051.88
  6. Step 6: Final answer
    x = 26,345.94

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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.