Home / 28,126.26-42,189.43-11,486.29

Finding the Fourth Proportional to 28,126.26, 42,189.43 and 11,486.29

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Solution

The fourth proportional to 28,126.26, 42,189.43 and 11,486.29 is: 17,229.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,126.26 : 42,189.43 = 11,486.29 : x
  2. Step 2: Convert to fraction form
    28,126.26/42,189.43 = 11,486.29/x
  3. Step 3: Cross multiply
    28,126.26x = 42,189.43 × 11,486.29
  4. Step 4: Simplify right side
    28,126.26x = 484,600,027.91
  5. Step 5: Solve for x
    x = 484,600,027.91/28,126.26
  6. Step 6: Final answer
    x = 17,229.45

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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.