Home / 21,965.45-32,941.76-12,603.87

Finding the Fourth Proportional to 21,965.45, 32,941.76 and 12,603.87

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Solution

The fourth proportional to 21,965.45, 32,941.76 and 12,603.87 is: 18,902.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,965.45 : 32,941.76 = 12,603.87 : x
  2. Step 2: Convert to fraction form
    21,965.45/32,941.76 = 12,603.87/x
  3. Step 3: Cross multiply
    21,965.45x = 32,941.76 × 12,603.87
  4. Step 4: Simplify right side
    21,965.45x = 415,193,597.59
  5. Step 5: Solve for x
    x = 415,193,597.59/21,965.45
  6. Step 6: Final answer
    x = 18,902.13

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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.