Home / 19,102.85-28,654.14-13,457.29

Finding the Fourth Proportional to 19,102.85, 28,654.14 and 13,457.29

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Solution

The fourth proportional to 19,102.85, 28,654.14 and 13,457.29 is: 20,185.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,102.85 : 28,654.14 = 13,457.29 : x
  2. Step 2: Convert to fraction form
    19,102.85/28,654.14 = 13,457.29/x
  3. Step 3: Cross multiply
    19,102.85x = 28,654.14 × 13,457.29
  4. Step 4: Simplify right side
    19,102.85x = 385,606,928.41
  5. Step 5: Solve for x
    x = 385,606,928.41/19,102.85
  6. Step 6: Final answer
    x = 20,185.83

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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.