Home / 18,897.20-28,278.60-16,458.80

Finding the Fourth Proportional to 18,897.20, 28,278.60 and 16,458.80

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Solution

The fourth proportional to 18,897.20, 28,278.60 and 16,458.80 is: 24,629.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897.20 : 28,278.60 = 16,458.80 : x
  2. Step 2: Convert to fraction form
    18,897.20/28,278.60 = 16,458.80/x
  3. Step 3: Cross multiply
    18,897.20x = 28,278.60 × 16,458.80
  4. Step 4: Simplify right side
    18,897.20x = 465,431,821.68
  5. Step 5: Solve for x
    x = 465,431,821.68/18,897.20
  6. Step 6: Final answer
    x = 24,629.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.