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Finding the Fourth Proportional to 21,632, 29,825.11 and 18,052.12

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Solution

The fourth proportional to 21,632, 29,825.11 and 18,052.12 is: 24,889.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,632 : 29,825.11 = 18,052.12 : x
  2. Step 2: Convert to fraction form
    21,632/29,825.11 = 18,052.12/x
  3. Step 3: Cross multiply
    21,632x = 29,825.11 × 18,052.12
  4. Step 4: Simplify right side
    21,632x = 538,406,464.73
  5. Step 5: Solve for x
    x = 538,406,464.73/21,632
  6. Step 6: Final answer
    x = 24,889.35

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1.5x scale

Why These Related Problems?

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