Home / 21,651.10-29,861.97-14,947.94

Finding the Fourth Proportional to 21,651.10, 29,861.97 and 14,947.94

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Solution

The fourth proportional to 21,651.10, 29,861.97 and 14,947.94 is: 20,616.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,651.10 : 29,861.97 = 14,947.94 : x
  2. Step 2: Convert to fraction form
    21,651.10/29,861.97 = 14,947.94/x
  3. Step 3: Cross multiply
    21,651.10x = 29,861.97 × 14,947.94
  4. Step 4: Simplify right side
    21,651.10x = 446,374,954.44
  5. Step 5: Solve for x
    x = 446,374,954.44/21,651.10
  6. Step 6: Final answer
    x = 20,616.74

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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.