Home / 30,281.68-41,790.72-16,852.78

Finding the Fourth Proportional to 30,281.68, 41,790.72 and 16,852.78

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Solution

The fourth proportional to 30,281.68, 41,790.72 and 16,852.78 is: 23,257.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,281.68 : 41,790.72 = 16,852.78 : x
  2. Step 2: Convert to fraction form
    30,281.68/41,790.72 = 16,852.78/x
  3. Step 3: Cross multiply
    30,281.68x = 41,790.72 × 16,852.78
  4. Step 4: Simplify right side
    30,281.68x = 704,289,810.20
  5. Step 5: Solve for x
    x = 704,289,810.20/30,281.68
  6. Step 6: Final answer
    x = 23,257.95

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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.