Home / 28,206.75-38,929.20-16,269.83

Finding the Fourth Proportional to 28,206.75, 38,929.20 and 16,269.83

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Solution

The fourth proportional to 28,206.75, 38,929.20 and 16,269.83 is: 22,454.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,206.75 : 38,929.20 = 16,269.83 : x
  2. Step 2: Convert to fraction form
    28,206.75/38,929.20 = 16,269.83/x
  3. Step 3: Cross multiply
    28,206.75x = 38,929.20 × 16,269.83
  4. Step 4: Simplify right side
    28,206.75x = 633,371,271.39
  5. Step 5: Solve for x
    x = 633,371,271.39/28,206.75
  6. Step 6: Final answer
    x = 22,454.60

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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.