Home / 28,129.68-42,203.43-17,606.43

Finding the Fourth Proportional to 28,129.68, 42,203.43 and 17,606.43

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Solution

The fourth proportional to 28,129.68, 42,203.43 and 17,606.43 is: 26,415.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,129.68 : 42,203.43 = 17,606.43 : x
  2. Step 2: Convert to fraction form
    28,129.68/42,203.43 = 17,606.43/x
  3. Step 3: Cross multiply
    28,129.68x = 42,203.43 × 17,606.43
  4. Step 4: Simplify right side
    28,129.68x = 743,051,736.05
  5. Step 5: Solve for x
    x = 743,051,736.05/28,129.68
  6. Step 6: Final answer
    x = 26,415.22

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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.