Home / 30,415.50-41,961.65-19,080.36

Finding the Fourth Proportional to 30,415.50, 41,961.65 and 19,080.36

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Solution

The fourth proportional to 30,415.50, 41,961.65 and 19,080.36 is: 26,323.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,415.50 : 41,961.65 = 19,080.36 : x
  2. Step 2: Convert to fraction form
    30,415.50/41,961.65 = 19,080.36/x
  3. Step 3: Cross multiply
    30,415.50x = 41,961.65 × 19,080.36
  4. Step 4: Simplify right side
    30,415.50x = 800,643,292.79
  5. Step 5: Solve for x
    x = 800,643,292.79/30,415.50
  6. Step 6: Final answer
    x = 26,323.53

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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.