Home / 28,414.89-39,204.63-18,343.80

Finding the Fourth Proportional to 28,414.89, 39,204.63 and 18,343.80

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Solution

The fourth proportional to 28,414.89, 39,204.63 and 18,343.80 is: 25,309.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,414.89 : 39,204.63 = 18,343.80 : x
  2. Step 2: Convert to fraction form
    28,414.89/39,204.63 = 18,343.80/x
  3. Step 3: Cross multiply
    28,414.89x = 39,204.63 × 18,343.80
  4. Step 4: Simplify right side
    28,414.89x = 719,161,891.79
  5. Step 5: Solve for x
    x = 719,161,891.79/28,414.89
  6. Step 6: Final answer
    x = 25,309.33

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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.