Home / 18,828.43-28,220.73-13,852

Finding the Fourth Proportional to 18,828.43, 28,220.73 and 13,852

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Solution

The fourth proportional to 18,828.43, 28,220.73 and 13,852 is: 20,761.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.43 : 28,220.73 = 13,852 : x
  2. Step 2: Convert to fraction form
    18,828.43/28,220.73 = 13,852/x
  3. Step 3: Cross multiply
    18,828.43x = 28,220.73 × 13,852
  4. Step 4: Simplify right side
    18,828.43x = 390,913,551.96
  5. Step 5: Solve for x
    x = 390,913,551.96/18,828.43
  6. Step 6: Final answer
    x = 20,761.88

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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.