Home / 21,818.12-32,723.82-11,962.28

Finding the Fourth Proportional to 21,818.12, 32,723.82 and 11,962.28

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Solution

The fourth proportional to 21,818.12, 32,723.82 and 11,962.28 is: 17,941.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,818.12 : 32,723.82 = 11,962.28 : x
  2. Step 2: Convert to fraction form
    21,818.12/32,723.82 = 11,962.28/x
  3. Step 3: Cross multiply
    21,818.12x = 32,723.82 × 11,962.28
  4. Step 4: Simplify right side
    21,818.12x = 391,451,497.51
  5. Step 5: Solve for x
    x = 391,451,497.51/21,818.12
  6. Step 6: Final answer
    x = 17,941.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.