Home / 30,377.52-41,938.20-19,761.84

Finding the Fourth Proportional to 30,377.52, 41,938.20 and 19,761.84

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Solution

The fourth proportional to 30,377.52, 41,938.20 and 19,761.84 is: 27,282.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,377.52 : 41,938.20 = 19,761.84 : x
  2. Step 2: Convert to fraction form
    30,377.52/41,938.20 = 19,761.84/x
  3. Step 3: Cross multiply
    30,377.52x = 41,938.20 × 19,761.84
  4. Step 4: Simplify right side
    30,377.52x = 828,775,998.29
  5. Step 5: Solve for x
    x = 828,775,998.29/30,377.52
  6. Step 6: Final answer
    x = 27,282.54

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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.