Home / 25,828.11-38,732.45-20,346.03

Finding the Fourth Proportional to 25,828.11, 38,732.45 and 20,346.03

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Solution

The fourth proportional to 25,828.11, 38,732.45 and 20,346.03 is: 30,511.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,828.11 : 38,732.45 = 20,346.03 : x
  2. Step 2: Convert to fraction form
    25,828.11/38,732.45 = 20,346.03/x
  3. Step 3: Cross multiply
    25,828.11x = 38,732.45 × 20,346.03
  4. Step 4: Simplify right side
    25,828.11x = 788,051,487.94
  5. Step 5: Solve for x
    x = 788,051,487.94/25,828.11
  6. Step 6: Final answer
    x = 30,511.39

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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.