Home / 21,958.03-30,301.80-11,886.22

Finding the Fourth Proportional to 21,958.03, 30,301.80 and 11,886.22

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Solution

The fourth proportional to 21,958.03, 30,301.80 and 11,886.22 is: 16,402.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,958.03 : 30,301.80 = 11,886.22 : x
  2. Step 2: Convert to fraction form
    21,958.03/30,301.80 = 11,886.22/x
  3. Step 3: Cross multiply
    21,958.03x = 30,301.80 × 11,886.22
  4. Step 4: Simplify right side
    21,958.03x = 360,173,861.20
  5. Step 5: Solve for x
    x = 360,173,861.20/21,958.03
  6. Step 6: Final answer
    x = 16,402.83

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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.