Home / 19,281.09-28,918.08-8,748.57

Finding the Fourth Proportional to 19,281.09, 28,918.08 and 8,748.57

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Solution

The fourth proportional to 19,281.09, 28,918.08 and 8,748.57 is: 13,121.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,281.09 : 28,918.08 = 8,748.57 : x
  2. Step 2: Convert to fraction form
    19,281.09/28,918.08 = 8,748.57/x
  3. Step 3: Cross multiply
    19,281.09x = 28,918.08 × 8,748.57
  4. Step 4: Simplify right side
    19,281.09x = 252,991,847.15
  5. Step 5: Solve for x
    x = 252,991,847.15/19,281.09
  6. Step 6: Final answer
    x = 13,121.24

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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.