Home / 19,531.98-29,258.79-8,987.31

Finding the Fourth Proportional to 19,531.98, 29,258.79 and 8,987.31

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Solution

The fourth proportional to 19,531.98, 29,258.79 and 8,987.31 is: 13,462.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,531.98 : 29,258.79 = 8,987.31 : x
  2. Step 2: Convert to fraction form
    19,531.98/29,258.79 = 8,987.31/x
  3. Step 3: Cross multiply
    19,531.98x = 29,258.79 × 8,987.31
  4. Step 4: Simplify right side
    19,531.98x = 262,957,815.95
  5. Step 5: Solve for x
    x = 262,957,815.95/19,531.98
  6. Step 6: Final answer
    x = 13,462.94

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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.