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Finding the Fourth Proportional to 19,372, 29,058.36 and 5,521.36

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Solution

The fourth proportional to 19,372, 29,058.36 and 5,521.36 is: 8,282.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,372 : 29,058.36 = 5,521.36 : x
  2. Step 2: Convert to fraction form
    19,372/29,058.36 = 5,521.36/x
  3. Step 3: Cross multiply
    19,372x = 29,058.36 × 5,521.36
  4. Step 4: Simplify right side
    19,372x = 160,441,666.57
  5. Step 5: Solve for x
    x = 160,441,666.57/19,372
  6. Step 6: Final answer
    x = 8,282.14

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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.