Home / 30,051.88-41,427.60-21,072.28

Finding the Fourth Proportional to 30,051.88, 41,427.60 and 21,072.28

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Solution

The fourth proportional to 30,051.88, 41,427.60 and 21,072.28 is: 29,048.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,051.88 : 41,427.60 = 21,072.28 : x
  2. Step 2: Convert to fraction form
    30,051.88/41,427.60 = 21,072.28/x
  3. Step 3: Cross multiply
    30,051.88x = 41,427.60 × 21,072.28
  4. Step 4: Simplify right side
    30,051.88x = 872,973,986.93
  5. Step 5: Solve for x
    x = 872,973,986.93/30,051.88
  6. Step 6: Final answer
    x = 29,048.90

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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.