Home / 30,378.80-41,922.62-16,950.08

Finding the Fourth Proportional to 30,378.80, 41,922.62 and 16,950.08

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Solution

The fourth proportional to 30,378.80, 41,922.62 and 16,950.08 is: 23,391.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,378.80 : 41,922.62 = 16,950.08 : x
  2. Step 2: Convert to fraction form
    30,378.80/41,922.62 = 16,950.08/x
  3. Step 3: Cross multiply
    30,378.80x = 41,922.62 × 16,950.08
  4. Step 4: Simplify right side
    30,378.80x = 710,591,762.81
  5. Step 5: Solve for x
    x = 710,591,762.81/30,378.80
  6. Step 6: Final answer
    x = 23,391.04

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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.