Home / 21,246.26-29,327.12-12,862.76

Finding the Fourth Proportional to 21,246.26, 29,327.12 and 12,862.76

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Solution

The fourth proportional to 21,246.26, 29,327.12 and 12,862.76 is: 17,755.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246.26 : 29,327.12 = 12,862.76 : x
  2. Step 2: Convert to fraction form
    21,246.26/29,327.12 = 12,862.76/x
  3. Step 3: Cross multiply
    21,246.26x = 29,327.12 × 12,862.76
  4. Step 4: Simplify right side
    21,246.26x = 377,227,706.05
  5. Step 5: Solve for x
    x = 377,227,706.05/21,246.26
  6. Step 6: Final answer
    x = 17,755.02

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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.