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Finding the Fourth Proportional to 19,531.65, 29,300.06 and 6,379.57

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Solution

The fourth proportional to 19,531.65, 29,300.06 and 6,379.57 is: 9,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,531.65 : 29,300.06 = 6,379.57 : x
  2. Step 2: Convert to fraction form
    19,531.65/29,300.06 = 6,379.57/x
  3. Step 3: Cross multiply
    19,531.65x = 29,300.06 × 6,379.57
  4. Step 4: Simplify right side
    19,531.65x = 186,921,783.77
  5. Step 5: Solve for x
    x = 186,921,783.77/19,531.65
  6. Step 6: Final answer
    x = 9,570.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.