Home / 39,436.58-54,422.66-21,531.99

Finding the Fourth Proportional to 39,436.58, 54,422.66 and 21,531.99

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Solution

The fourth proportional to 39,436.58, 54,422.66 and 21,531.99 is: 29,714.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,436.58 : 54,422.66 = 21,531.99 : x
  2. Step 2: Convert to fraction form
    39,436.58/54,422.66 = 21,531.99/x
  3. Step 3: Cross multiply
    39,436.58x = 54,422.66 × 21,531.99
  4. Step 4: Simplify right side
    39,436.58x = 1,171,828,063.23
  5. Step 5: Solve for x
    x = 1,171,828,063.23/39,436.58
  6. Step 6: Final answer
    x = 29,714.25

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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.