Home / 19,817.64-29,731.11-5,777.94

Finding the Fourth Proportional to 19,817.64, 29,731.11 and 5,777.94

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Solution

The fourth proportional to 19,817.64, 29,731.11 and 5,777.94 is: 8,668.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,817.64 : 29,731.11 = 5,777.94 : x
  2. Step 2: Convert to fraction form
    19,817.64/29,731.11 = 5,777.94/x
  3. Step 3: Cross multiply
    19,817.64x = 29,731.11 × 5,777.94
  4. Step 4: Simplify right side
    19,817.64x = 171,784,569.71
  5. Step 5: Solve for x
    x = 171,784,569.71/19,817.64
  6. Step 6: Final answer
    x = 8,668.27

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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.