Home / 21,873.06-30,184.56-12,441.60

Finding the Fourth Proportional to 21,873.06, 30,184.56 and 12,441.60

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Solution

The fourth proportional to 21,873.06, 30,184.56 and 12,441.60 is: 17,169.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,873.06 : 30,184.56 = 12,441.60 : x
  2. Step 2: Convert to fraction form
    21,873.06/30,184.56 = 12,441.60/x
  3. Step 3: Cross multiply
    21,873.06x = 30,184.56 × 12,441.60
  4. Step 4: Simplify right side
    21,873.06x = 375,544,221.70
  5. Step 5: Solve for x
    x = 375,544,221.70/21,873.06
  6. Step 6: Final answer
    x = 17,169.26

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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.