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Finding the Fourth Proportional to 28,993.47, 43,491.35 and 13,792.38

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Solution

The fourth proportional to 28,993.47, 43,491.35 and 13,792.38 is: 20,689.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,993.47 : 43,491.35 = 13,792.38 : x
  2. Step 2: Convert to fraction form
    28,993.47/43,491.35 = 13,792.38/x
  3. Step 3: Cross multiply
    28,993.47x = 43,491.35 × 13,792.38
  4. Step 4: Simplify right side
    28,993.47x = 599,849,225.91
  5. Step 5: Solve for x
    x = 599,849,225.91/28,993.47
  6. Step 6: Final answer
    x = 20,689.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.