Home / 21,486.25-29,651.03-12,054.61

Finding the Fourth Proportional to 21,486.25, 29,651.03 and 12,054.61

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Solution

The fourth proportional to 21,486.25, 29,651.03 and 12,054.61 is: 16,635.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.25 : 29,651.03 = 12,054.61 : x
  2. Step 2: Convert to fraction form
    21,486.25/29,651.03 = 12,054.61/x
  3. Step 3: Cross multiply
    21,486.25x = 29,651.03 × 12,054.61
  4. Step 4: Simplify right side
    21,486.25x = 357,431,602.75
  5. Step 5: Solve for x
    x = 357,431,602.75/21,486.25
  6. Step 6: Final answer
    x = 16,635.36

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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.