Home / 28,181.24-42,290.31-10,651.07

Finding the Fourth Proportional to 28,181.24, 42,290.31 and 10,651.07

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Solution

The fourth proportional to 28,181.24, 42,290.31 and 10,651.07 is: 15,983.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,181.24 : 42,290.31 = 10,651.07 : x
  2. Step 2: Convert to fraction form
    28,181.24/42,290.31 = 10,651.07/x
  3. Step 3: Cross multiply
    28,181.24x = 42,290.31 × 10,651.07
  4. Step 4: Simplify right side
    28,181.24x = 450,436,840.68
  5. Step 5: Solve for x
    x = 450,436,840.68/28,181.24
  6. Step 6: Final answer
    x = 15,983.57

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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.