Home / 19,940.40-27,508.98-11,977.98

Finding the Fourth Proportional to 19,940.40, 27,508.98 and 11,977.98

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Solution

The fourth proportional to 19,940.40, 27,508.98 and 11,977.98 is: 16,524.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.40 : 27,508.98 = 11,977.98 : x
  2. Step 2: Convert to fraction form
    19,940.40/27,508.98 = 11,977.98/x
  3. Step 3: Cross multiply
    19,940.40x = 27,508.98 × 11,977.98
  4. Step 4: Simplify right side
    19,940.40x = 329,502,012.26
  5. Step 5: Solve for x
    x = 329,502,012.26/19,940.40
  6. Step 6: Final answer
    x = 16,524.34

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1.5x scale

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.