Home / 19,257.12-28,875.96-9,381.60

Finding the Fourth Proportional to 19,257.12, 28,875.96 and 9,381.60

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Solution

The fourth proportional to 19,257.12, 28,875.96 and 9,381.60 is: 14,067.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,257.12 : 28,875.96 = 9,381.60 : x
  2. Step 2: Convert to fraction form
    19,257.12/28,875.96 = 9,381.60/x
  3. Step 3: Cross multiply
    19,257.12x = 28,875.96 × 9,381.60
  4. Step 4: Simplify right side
    19,257.12x = 270,902,706.34
  5. Step 5: Solve for x
    x = 270,902,706.34/19,257.12
  6. Step 6: Final answer
    x = 14,067.66

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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.