Home / 21,955.35-30,296.48-13,001.41

Finding the Fourth Proportional to 21,955.35, 30,296.48 and 13,001.41

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Solution

The fourth proportional to 21,955.35, 30,296.48 and 13,001.41 is: 17,940.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955.35 : 30,296.48 = 13,001.41 : x
  2. Step 2: Convert to fraction form
    21,955.35/30,296.48 = 13,001.41/x
  3. Step 3: Cross multiply
    21,955.35x = 30,296.48 × 13,001.41
  4. Step 4: Simplify right side
    21,955.35x = 393,897,004.03
  5. Step 5: Solve for x
    x = 393,897,004.03/21,955.35
  6. Step 6: Final answer
    x = 17,940.82

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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.