Home / 30,120.75-41,586.12-19,370.43

Finding the Fourth Proportional to 30,120.75, 41,586.12 and 19,370.43

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Solution

The fourth proportional to 30,120.75, 41,586.12 and 19,370.43 is: 26,743.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,120.75 : 41,586.12 = 19,370.43 : x
  2. Step 2: Convert to fraction form
    30,120.75/41,586.12 = 19,370.43/x
  3. Step 3: Cross multiply
    30,120.75x = 41,586.12 × 19,370.43
  4. Step 4: Simplify right side
    30,120.75x = 805,541,026.43
  5. Step 5: Solve for x
    x = 805,541,026.43/30,120.75
  6. Step 6: Final answer
    x = 26,743.72

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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.