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Finding the Fourth Proportional to 23,040, 34,498.56 and 18,892.80

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Solution

The fourth proportional to 23,040, 34,498.56 and 18,892.80 is: 28,288.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,040 : 34,498.56 = 18,892.80 : x
  2. Step 2: Convert to fraction form
    23,040/34,498.56 = 18,892.80/x
  3. Step 3: Cross multiply
    23,040x = 34,498.56 × 18,892.80
  4. Step 4: Simplify right side
    23,040x = 651,774,394.37
  5. Step 5: Solve for x
    x = 651,774,394.37/23,040
  6. Step 6: Final answer
    x = 28,288.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.