Home / 21,727.44-29,984.16-12,774.96

Finding the Fourth Proportional to 21,727.44, 29,984.16 and 12,774.96

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Solution

The fourth proportional to 21,727.44, 29,984.16 and 12,774.96 is: 17,629.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,727.44 : 29,984.16 = 12,774.96 : x
  2. Step 2: Convert to fraction form
    21,727.44/29,984.16 = 12,774.96/x
  3. Step 3: Cross multiply
    21,727.44x = 29,984.16 × 12,774.96
  4. Step 4: Simplify right side
    21,727.44x = 383,046,444.63
  5. Step 5: Solve for x
    x = 383,046,444.63/21,727.44
  6. Step 6: Final answer
    x = 17,629.62

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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.