Home / 40,611.76-55,940.10-28,654.12

Finding the Fourth Proportional to 40,611.76, 55,940.10 and 28,654.12

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Solution

The fourth proportional to 40,611.76, 55,940.10 and 28,654.12 is: 39,469.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,611.76 : 55,940.10 = 28,654.12 : x
  2. Step 2: Convert to fraction form
    40,611.76/55,940.10 = 28,654.12/x
  3. Step 3: Cross multiply
    40,611.76x = 55,940.10 × 28,654.12
  4. Step 4: Simplify right side
    40,611.76x = 1,602,914,338.21
  5. Step 5: Solve for x
    x = 1,602,914,338.21/40,611.76
  6. Step 6: Final answer
    x = 39,469.22

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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.