Home / 19,290.24-28,938.96-8,761

Finding the Fourth Proportional to 19,290.24, 28,938.96 and 8,761

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Solution

The fourth proportional to 19,290.24, 28,938.96 and 8,761 is: 13,143.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.24 : 28,938.96 = 8,761 : x
  2. Step 2: Convert to fraction form
    19,290.24/28,938.96 = 8,761/x
  3. Step 3: Cross multiply
    19,290.24x = 28,938.96 × 8,761
  4. Step 4: Simplify right side
    19,290.24x = 253,534,228.56
  5. Step 5: Solve for x
    x = 253,534,228.56/19,290.24
  6. Step 6: Final answer
    x = 13,143.14

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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.