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Finding the Fourth Proportional to 19,818, 29,726.98 and 5,026.88

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Solution

The fourth proportional to 19,818, 29,726.98 and 5,026.88 is: 7,540.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818 : 29,726.98 = 5,026.88 : x
  2. Step 2: Convert to fraction form
    19,818/29,726.98 = 5,026.88/x
  3. Step 3: Cross multiply
    19,818x = 29,726.98 × 5,026.88
  4. Step 4: Simplify right side
    19,818x = 149,434,022.97
  5. Step 5: Solve for x
    x = 149,434,022.97/19,818
  6. Step 6: Final answer
    x = 7,540.32

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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.