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Finding the Fourth Proportional to 21,501.84, 29,599.72 and 18,500.24

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Solution

The fourth proportional to 21,501.84, 29,599.72 and 18,500.24 is: 25,467.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,501.84 : 29,599.72 = 18,500.24 : x
  2. Step 2: Convert to fraction form
    21,501.84/29,599.72 = 18,500.24/x
  3. Step 3: Cross multiply
    21,501.84x = 29,599.72 × 18,500.24
  4. Step 4: Simplify right side
    21,501.84x = 547,601,923.93
  5. Step 5: Solve for x
    x = 547,601,923.93/21,501.84
  6. Step 6: Final answer
    x = 25,467.68

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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.