Home / 40,515.80-55,914.18-22,611.56

Finding the Fourth Proportional to 40,515.80, 55,914.18 and 22,611.56

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Solution

The fourth proportional to 40,515.80, 55,914.18 and 22,611.56 is: 31,205.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,515.80 : 55,914.18 = 22,611.56 : x
  2. Step 2: Convert to fraction form
    40,515.80/55,914.18 = 22,611.56/x
  3. Step 3: Cross multiply
    40,515.80x = 55,914.18 × 22,611.56
  4. Step 4: Simplify right side
    40,515.80x = 1,264,306,835.92
  5. Step 5: Solve for x
    x = 1,264,306,835.92/40,515.80
  6. Step 6: Final answer
    x = 31,205.28

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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.