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Finding the Fourth Proportional to 28,633.92, 42,954.93 and 8,914.47

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Solution

The fourth proportional to 28,633.92, 42,954.93 and 8,914.47 is: 13,372.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,633.92 : 42,954.93 = 8,914.47 : x
  2. Step 2: Convert to fraction form
    28,633.92/42,954.93 = 8,914.47/x
  3. Step 3: Cross multiply
    28,633.92x = 42,954.93 × 8,914.47
  4. Step 4: Simplify right side
    28,633.92x = 382,920,175.49
  5. Step 5: Solve for x
    x = 382,920,175.49/28,633.92
  6. Step 6: Final answer
    x = 13,372.96

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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.