Home / 28,055.55-38,720.07-16,118.85

Finding the Fourth Proportional to 28,055.55, 38,720.07 and 16,118.85

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Solution

The fourth proportional to 28,055.55, 38,720.07 and 16,118.85 is: 22,245.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.55 : 38,720.07 = 16,118.85 : x
  2. Step 2: Convert to fraction form
    28,055.55/38,720.07 = 16,118.85/x
  3. Step 3: Cross multiply
    28,055.55x = 38,720.07 × 16,118.85
  4. Step 4: Simplify right side
    28,055.55x = 624,123,000.32
  5. Step 5: Solve for x
    x = 624,123,000.32/28,055.55
  6. Step 6: Final answer
    x = 22,245.97

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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.