Home / 39,026.26-53,856.22-21,121.26

Finding the Fourth Proportional to 39,026.26, 53,856.22 and 21,121.26

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Solution

The fourth proportional to 39,026.26, 53,856.22 and 21,121.26 is: 29,147.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,026.26 : 53,856.22 = 21,121.26 : x
  2. Step 2: Convert to fraction form
    39,026.26/53,856.22 = 21,121.26/x
  3. Step 3: Cross multiply
    39,026.26x = 53,856.22 × 21,121.26
  4. Step 4: Simplify right side
    39,026.26x = 1,137,511,225.24
  5. Step 5: Solve for x
    x = 1,137,511,225.24/39,026.26
  6. Step 6: Final answer
    x = 29,147.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.