Home / 28,766.34-43,154.43-13,185.30

Finding the Fourth Proportional to 28,766.34, 43,154.43 and 13,185.30

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Solution

The fourth proportional to 28,766.34, 43,154.43 and 13,185.30 is: 19,780.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,766.34 : 43,154.43 = 13,185.30 : x
  2. Step 2: Convert to fraction form
    28,766.34/43,154.43 = 13,185.30/x
  3. Step 3: Cross multiply
    28,766.34x = 43,154.43 × 13,185.30
  4. Step 4: Simplify right side
    28,766.34x = 569,004,105.88
  5. Step 5: Solve for x
    x = 569,004,105.88/28,766.34
  6. Step 6: Final answer
    x = 19,780.21

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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.