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Finding the Fourth Proportional to 21,233.89, 29,308.89 and 17,014.40

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Solution

The fourth proportional to 21,233.89, 29,308.89 and 17,014.40 is: 23,484.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,233.89 : 29,308.89 = 17,014.40 : x
  2. Step 2: Convert to fraction form
    21,233.89/29,308.89 = 17,014.40/x
  3. Step 3: Cross multiply
    21,233.89x = 29,308.89 × 17,014.40
  4. Step 4: Simplify right side
    21,233.89x = 498,673,178.02
  5. Step 5: Solve for x
    x = 498,673,178.02/21,233.89
  6. Step 6: Final answer
    x = 23,484.78

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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.