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Finding the Fourth Proportional to 22,295.79, 30,763.14 and 15,126.69

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Solution

The fourth proportional to 22,295.79, 30,763.14 and 15,126.69 is: 20,871.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,295.79 : 30,763.14 = 15,126.69 : x
  2. Step 2: Convert to fraction form
    22,295.79/30,763.14 = 15,126.69/x
  3. Step 3: Cross multiply
    22,295.79x = 30,763.14 × 15,126.69
  4. Step 4: Simplify right side
    22,295.79x = 465,344,482.21
  5. Step 5: Solve for x
    x = 465,344,482.21/22,295.79
  6. Step 6: Final answer
    x = 20,871.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.