Home / 30,020.88-41,428.20-16,591.84

Finding the Fourth Proportional to 30,020.88, 41,428.20 and 16,591.84

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Solution

The fourth proportional to 30,020.88, 41,428.20 and 16,591.84 is: 22,896.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,020.88 : 41,428.20 = 16,591.84 : x
  2. Step 2: Convert to fraction form
    30,020.88/41,428.20 = 16,591.84/x
  3. Step 3: Cross multiply
    30,020.88x = 41,428.20 × 16,591.84
  4. Step 4: Simplify right side
    30,020.88x = 687,370,065.89
  5. Step 5: Solve for x
    x = 687,370,065.89/30,020.88
  6. Step 6: Final answer
    x = 22,896.40

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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.