Home / 29,003.82-40,038.75-21,836.58

Finding the Fourth Proportional to 29,003.82, 40,038.75 and 21,836.58

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Solution

The fourth proportional to 29,003.82, 40,038.75 and 21,836.58 is: 30,144.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,003.82 : 40,038.75 = 21,836.58 : x
  2. Step 2: Convert to fraction form
    29,003.82/40,038.75 = 21,836.58/x
  3. Step 3: Cross multiply
    29,003.82x = 40,038.75 × 21,836.58
  4. Step 4: Simplify right side
    29,003.82x = 874,309,367.48
  5. Step 5: Solve for x
    x = 874,309,367.48/29,003.82
  6. Step 6: Final answer
    x = 30,144.63

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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.