Home / 28,374.94-42,564.84-11,731.78

Finding the Fourth Proportional to 28,374.94, 42,564.84 and 11,731.78

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Solution

The fourth proportional to 28,374.94, 42,564.84 and 11,731.78 is: 17,598.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,374.94 : 42,564.84 = 11,731.78 : x
  2. Step 2: Convert to fraction form
    28,374.94/42,564.84 = 11,731.78/x
  3. Step 3: Cross multiply
    28,374.94x = 42,564.84 × 11,731.78
  4. Step 4: Simplify right side
    28,374.94x = 499,361,338.62
  5. Step 5: Solve for x
    x = 499,361,338.62/28,374.94
  6. Step 6: Final answer
    x = 17,598.67

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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.