Home / 21,446.21-29,596.95-11,885.90

Finding the Fourth Proportional to 21,446.21, 29,596.95 and 11,885.90

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Solution

The fourth proportional to 21,446.21, 29,596.95 and 11,885.90 is: 16,403.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,446.21 : 29,596.95 = 11,885.90 : x
  2. Step 2: Convert to fraction form
    21,446.21/29,596.95 = 11,885.90/x
  3. Step 3: Cross multiply
    21,446.21x = 29,596.95 × 11,885.90
  4. Step 4: Simplify right side
    21,446.21x = 351,786,240.02
  5. Step 5: Solve for x
    x = 351,786,240.02/21,446.21
  6. Step 6: Final answer
    x = 16,403.19

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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.