Home / 28,222.73-38,938.98-16,122.80

Finding the Fourth Proportional to 28,222.73, 38,938.98 and 16,122.80

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Solution

The fourth proportional to 28,222.73, 38,938.98 and 16,122.80 is: 22,244.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.73 : 38,938.98 = 16,122.80 : x
  2. Step 2: Convert to fraction form
    28,222.73/38,938.98 = 16,122.80/x
  3. Step 3: Cross multiply
    28,222.73x = 38,938.98 × 16,122.80
  4. Step 4: Simplify right side
    28,222.73x = 627,805,234.83
  5. Step 5: Solve for x
    x = 627,805,234.83/28,222.73
  6. Step 6: Final answer
    x = 22,244.67

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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.