Home / 21,685.82-29,926.66-12,733.42

Finding the Fourth Proportional to 21,685.82, 29,926.66 and 12,733.42

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Solution

The fourth proportional to 21,685.82, 29,926.66 and 12,733.42 is: 17,572.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,685.82 : 29,926.66 = 12,733.42 : x
  2. Step 2: Convert to fraction form
    21,685.82/29,926.66 = 12,733.42/x
  3. Step 3: Cross multiply
    21,685.82x = 29,926.66 × 12,733.42
  4. Step 4: Simplify right side
    21,685.82x = 381,068,730.98
  5. Step 5: Solve for x
    x = 381,068,730.98/21,685.82
  6. Step 6: Final answer
    x = 17,572.25

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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.