Home / 21,625.32-29,842.97-12,671.04

Finding the Fourth Proportional to 21,625.32, 29,842.97 and 12,671.04

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Solution

The fourth proportional to 21,625.32, 29,842.97 and 12,671.04 is: 17,486.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,625.32 : 29,842.97 = 12,671.04 : x
  2. Step 2: Convert to fraction form
    21,625.32/29,842.97 = 12,671.04/x
  3. Step 3: Cross multiply
    21,625.32x = 29,842.97 × 12,671.04
  4. Step 4: Simplify right side
    21,625.32x = 378,141,403.23
  5. Step 5: Solve for x
    x = 378,141,403.23/21,625.32
  6. Step 6: Final answer
    x = 17,486.05

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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.