Home / 21,954.43-30,291.73-13,001.50

Finding the Fourth Proportional to 21,954.43, 30,291.73 and 13,001.50

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Solution

The fourth proportional to 21,954.43, 30,291.73 and 13,001.50 is: 17,938.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,954.43 : 30,291.73 = 13,001.50 : x
  2. Step 2: Convert to fraction form
    21,954.43/30,291.73 = 13,001.50/x
  3. Step 3: Cross multiply
    21,954.43x = 30,291.73 × 13,001.50
  4. Step 4: Simplify right side
    21,954.43x = 393,837,927.60
  5. Step 5: Solve for x
    x = 393,837,927.60/21,954.43
  6. Step 6: Final answer
    x = 17,938.88

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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.