Home / 28,206.50-38,928.85-16,269.57

Finding the Fourth Proportional to 28,206.50, 38,928.85 and 16,269.57

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Solution

The fourth proportional to 28,206.50, 38,928.85 and 16,269.57 is: 22,454.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,206.50 : 38,928.85 = 16,269.57 : x
  2. Step 2: Convert to fraction form
    28,206.50/38,928.85 = 16,269.57/x
  3. Step 3: Cross multiply
    28,206.50x = 38,928.85 × 16,269.57
  4. Step 4: Simplify right side
    28,206.50x = 633,355,650.09
  5. Step 5: Solve for x
    x = 633,355,650.09/28,206.50
  6. Step 6: Final answer
    x = 22,454.25

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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.