Home / 21,958.13-32,941.35-8,811.53

Finding the Fourth Proportional to 21,958.13, 32,941.35 and 8,811.53

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Solution

The fourth proportional to 21,958.13, 32,941.35 and 8,811.53 is: 13,218.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,958.13 : 32,941.35 = 8,811.53 : x
  2. Step 2: Convert to fraction form
    21,958.13/32,941.35 = 8,811.53/x
  3. Step 3: Cross multiply
    21,958.13x = 32,941.35 × 8,811.53
  4. Step 4: Simplify right side
    21,958.13x = 290,263,776.12
  5. Step 5: Solve for x
    x = 290,263,776.12/21,958.13
  6. Step 6: Final answer
    x = 13,218.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.