Home / 19,428.40-29,136.42-6,277.66

Finding the Fourth Proportional to 19,428.40, 29,136.42 and 6,277.66

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Solution

The fourth proportional to 19,428.40, 29,136.42 and 6,277.66 is: 9,414.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.40 : 29,136.42 = 6,277.66 : x
  2. Step 2: Convert to fraction form
    19,428.40/29,136.42 = 6,277.66/x
  3. Step 3: Cross multiply
    19,428.40x = 29,136.42 × 6,277.66
  4. Step 4: Simplify right side
    19,428.40x = 182,908,538.38
  5. Step 5: Solve for x
    x = 182,908,538.38/19,428.40
  6. Step 6: Final answer
    x = 9,414.49

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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.