Home / 18,827.43-28,219.23-13,851

Finding the Fourth Proportional to 18,827.43, 28,219.23 and 13,851

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Solution

The fourth proportional to 18,827.43, 28,219.23 and 13,851 is: 20,760.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.43 : 28,219.23 = 13,851 : x
  2. Step 2: Convert to fraction form
    18,827.43/28,219.23 = 13,851/x
  3. Step 3: Cross multiply
    18,827.43x = 28,219.23 × 13,851
  4. Step 4: Simplify right side
    18,827.43x = 390,864,554.73
  5. Step 5: Solve for x
    x = 390,864,554.73/18,827.43
  6. Step 6: Final answer
    x = 20,760.38

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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.