Home / 28,378.98-39,161.16-16,441.38

Finding the Fourth Proportional to 28,378.98, 39,161.16 and 16,441.38

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Solution

The fourth proportional to 28,378.98, 39,161.16 and 16,441.38 is: 22,688.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,378.98 : 39,161.16 = 16,441.38 : x
  2. Step 2: Convert to fraction form
    28,378.98/39,161.16 = 16,441.38/x
  3. Step 3: Cross multiply
    28,378.98x = 39,161.16 × 16,441.38
  4. Step 4: Simplify right side
    28,378.98x = 643,863,512.80
  5. Step 5: Solve for x
    x = 643,863,512.80/28,378.98
  6. Step 6: Final answer
    x = 22,688.04

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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.