Home / 31,704.55-47,522.49-20,619.19

Finding the Fourth Proportional to 31,704.55, 47,522.49 and 20,619.19

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Solution

The fourth proportional to 31,704.55, 47,522.49 and 20,619.19 is: 30,906.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,704.55 : 47,522.49 = 20,619.19 : x
  2. Step 2: Convert to fraction form
    31,704.55/47,522.49 = 20,619.19/x
  3. Step 3: Cross multiply
    31,704.55x = 47,522.49 × 20,619.19
  4. Step 4: Simplify right side
    31,704.55x = 979,875,250.58
  5. Step 5: Solve for x
    x = 979,875,250.58/31,704.55
  6. Step 6: Final answer
    x = 30,906.46

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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.