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Finding the Fourth Proportional to 30,446.82, 45,673.88 and 10,721.30

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Solution

The fourth proportional to 30,446.82, 45,673.88 and 10,721.30 is: 16,083.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,446.82 : 45,673.88 = 10,721.30 : x
  2. Step 2: Convert to fraction form
    30,446.82/45,673.88 = 10,721.30/x
  3. Step 3: Cross multiply
    30,446.82x = 45,673.88 × 10,721.30
  4. Step 4: Simplify right side
    30,446.82x = 489,683,087.67
  5. Step 5: Solve for x
    x = 489,683,087.67/30,446.82
  6. Step 6: Final answer
    x = 16,083.23

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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.