Home / 28,906.78-43,364.40-12,266.80

Finding the Fourth Proportional to 28,906.78, 43,364.40 and 12,266.80

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Solution

The fourth proportional to 28,906.78, 43,364.40 and 12,266.80 is: 18,402.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,906.78 : 43,364.40 = 12,266.80 : x
  2. Step 2: Convert to fraction form
    28,906.78/43,364.40 = 12,266.80/x
  3. Step 3: Cross multiply
    28,906.78x = 43,364.40 × 12,266.80
  4. Step 4: Simplify right side
    28,906.78x = 531,942,421.92
  5. Step 5: Solve for x
    x = 531,942,421.92/28,906.78
  6. Step 6: Final answer
    x = 18,402.00

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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.