Home / 30,340.50-41,870.09-16,912.61

Finding the Fourth Proportional to 30,340.50, 41,870.09 and 16,912.61

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Solution

The fourth proportional to 30,340.50, 41,870.09 and 16,912.61 is: 23,339.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340.50 : 41,870.09 = 16,912.61 : x
  2. Step 2: Convert to fraction form
    30,340.50/41,870.09 = 16,912.61/x
  3. Step 3: Cross multiply
    30,340.50x = 41,870.09 × 16,912.61
  4. Step 4: Simplify right side
    30,340.50x = 708,132,502.83
  5. Step 5: Solve for x
    x = 708,132,502.83/30,340.50
  6. Step 6: Final answer
    x = 23,339.51

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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.