Home / 28,415.21-42,557.20-27,431.06

Finding the Fourth Proportional to 28,415.21, 42,557.20 and 27,431.06

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Solution

The fourth proportional to 28,415.21, 42,557.20 and 27,431.06 is: 41,083.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,415.21 : 42,557.20 = 27,431.06 : x
  2. Step 2: Convert to fraction form
    28,415.21/42,557.20 = 27,431.06/x
  3. Step 3: Cross multiply
    28,415.21x = 42,557.20 × 27,431.06
  4. Step 4: Simplify right side
    28,415.21x = 1,167,388,825.27
  5. Step 5: Solve for x
    x = 1,167,388,825.27/28,415.21
  6. Step 6: Final answer
    x = 41,083.24

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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.