Home / 21,813.06-32,729.30-7,958.82

Finding the Fourth Proportional to 21,813.06, 32,729.30 and 7,958.82

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Solution

The fourth proportional to 21,813.06, 32,729.30 and 7,958.82 is: 11,941.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,813.06 : 32,729.30 = 7,958.82 : x
  2. Step 2: Convert to fraction form
    21,813.06/32,729.30 = 7,958.82/x
  3. Step 3: Cross multiply
    21,813.06x = 32,729.30 × 7,958.82
  4. Step 4: Simplify right side
    21,813.06x = 260,486,607.43
  5. Step 5: Solve for x
    x = 260,486,607.43/21,813.06
  6. Step 6: Final answer
    x = 11,941.77

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1.5x scale

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.