Home / 30,274.44-41,779.72-18,940.31

Finding the Fourth Proportional to 30,274.44, 41,779.72 and 18,940.31

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Solution

The fourth proportional to 30,274.44, 41,779.72 and 18,940.31 is: 26,138.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,274.44 : 41,779.72 = 18,940.31 : x
  2. Step 2: Convert to fraction form
    30,274.44/41,779.72 = 18,940.31/x
  3. Step 3: Cross multiply
    30,274.44x = 41,779.72 × 18,940.31
  4. Step 4: Simplify right side
    30,274.44x = 791,320,848.51
  5. Step 5: Solve for x
    x = 791,320,848.51/30,274.44
  6. Step 6: Final answer
    x = 26,138.25

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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.