Home / 19,190.03-28,731.90-9,809.86

Finding the Fourth Proportional to 19,190.03, 28,731.90 and 9,809.86

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Solution

The fourth proportional to 19,190.03, 28,731.90 and 9,809.86 is: 14,687.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,190.03 : 28,731.90 = 9,809.86 : x
  2. Step 2: Convert to fraction form
    19,190.03/28,731.90 = 9,809.86/x
  3. Step 3: Cross multiply
    19,190.03x = 28,731.90 × 9,809.86
  4. Step 4: Simplify right side
    19,190.03x = 281,855,916.53
  5. Step 5: Solve for x
    x = 281,855,916.53/19,190.03
  6. Step 6: Final answer
    x = 14,687.62

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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.