Home / 21,625.28-29,842.32-12,193.64

Finding the Fourth Proportional to 21,625.28, 29,842.32 and 12,193.64

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Solution

The fourth proportional to 21,625.28, 29,842.32 and 12,193.64 is: 16,826.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,625.28 : 29,842.32 = 12,193.64 : x
  2. Step 2: Convert to fraction form
    21,625.28/29,842.32 = 12,193.64/x
  3. Step 3: Cross multiply
    21,625.28x = 29,842.32 × 12,193.64
  4. Step 4: Simplify right side
    21,625.28x = 363,886,506.84
  5. Step 5: Solve for x
    x = 363,886,506.84/21,625.28
  6. Step 6: Final answer
    x = 16,826.90

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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.