Home / 30,676.62-42,409.20-30,395.95

Finding the Fourth Proportional to 30,676.62, 42,409.20 and 30,395.95

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Solution

The fourth proportional to 30,676.62, 42,409.20 and 30,395.95 is: 42,021.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,676.62 : 42,409.20 = 30,395.95 : x
  2. Step 2: Convert to fraction form
    30,676.62/42,409.20 = 30,395.95/x
  3. Step 3: Cross multiply
    30,676.62x = 42,409.20 × 30,395.95
  4. Step 4: Simplify right side
    30,676.62x = 1,289,067,922.74
  5. Step 5: Solve for x
    x = 1,289,067,922.74/30,676.62
  6. Step 6: Final answer
    x = 42,021.18

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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.