Home / 21,916.88-32,861.26-13,029.84

Finding the Fourth Proportional to 21,916.88, 32,861.26 and 13,029.84

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Solution

The fourth proportional to 21,916.88, 32,861.26 and 13,029.84 is: 19,536.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,916.88 : 32,861.26 = 13,029.84 : x
  2. Step 2: Convert to fraction form
    21,916.88/32,861.26 = 13,029.84/x
  3. Step 3: Cross multiply
    21,916.88x = 32,861.26 × 13,029.84
  4. Step 4: Simplify right side
    21,916.88x = 428,176,960.00
  5. Step 5: Solve for x
    x = 428,176,960.00/21,916.88
  6. Step 6: Final answer
    x = 19,536.40

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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.