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Finding the Fourth Proportional to 22,560.96, 31,101.51 and 15,825.69

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Solution

The fourth proportional to 22,560.96, 31,101.51 and 15,825.69 is: 21,816.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,560.96 : 31,101.51 = 15,825.69 : x
  2. Step 2: Convert to fraction form
    22,560.96/31,101.51 = 15,825.69/x
  3. Step 3: Cross multiply
    22,560.96x = 31,101.51 × 15,825.69
  4. Step 4: Simplify right side
    22,560.96x = 492,202,855.79
  5. Step 5: Solve for x
    x = 492,202,855.79/22,560.96
  6. Step 6: Final answer
    x = 21,816.57

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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.