Home / 21,182.04-29,232.54-12,231.18

Finding the Fourth Proportional to 21,182.04, 29,232.54 and 12,231.18

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Solution

The fourth proportional to 21,182.04, 29,232.54 and 12,231.18 is: 16,879.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.04 : 29,232.54 = 12,231.18 : x
  2. Step 2: Convert to fraction form
    21,182.04/29,232.54 = 12,231.18/x
  3. Step 3: Cross multiply
    21,182.04x = 29,232.54 × 12,231.18
  4. Step 4: Simplify right side
    21,182.04x = 357,548,458.60
  5. Step 5: Solve for x
    x = 357,548,458.60/21,182.04
  6. Step 6: Final answer
    x = 16,879.79

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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.