Home / 28,098.11-42,115.37-11,437.22

Finding the Fourth Proportional to 28,098.11, 42,115.37 and 11,437.22

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Solution

The fourth proportional to 28,098.11, 42,115.37 and 11,437.22 is: 17,142.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,098.11 : 42,115.37 = 11,437.22 : x
  2. Step 2: Convert to fraction form
    28,098.11/42,115.37 = 11,437.22/x
  3. Step 3: Cross multiply
    28,098.11x = 42,115.37 × 11,437.22
  4. Step 4: Simplify right side
    28,098.11x = 481,682,484.31
  5. Step 5: Solve for x
    x = 481,682,484.31/28,098.11
  6. Step 6: Final answer
    x = 17,142.88

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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.