Home / 21,958.60-30,302.80-11,887.03

Finding the Fourth Proportional to 21,958.60, 30,302.80 and 11,887.03

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Solution

The fourth proportional to 21,958.60, 30,302.80 and 11,887.03 is: 16,404.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,958.60 : 30,302.80 = 11,887.03 : x
  2. Step 2: Convert to fraction form
    21,958.60/30,302.80 = 11,887.03/x
  3. Step 3: Cross multiply
    21,958.60x = 30,302.80 × 11,887.03
  4. Step 4: Simplify right side
    21,958.60x = 360,210,292.68
  5. Step 5: Solve for x
    x = 360,210,292.68/21,958.60
  6. Step 6: Final answer
    x = 16,404.06

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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.