Home / 20,685.39-30,794.12-20,562.37

Finding the Fourth Proportional to 20,685.39, 30,794.12 and 20,562.37

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Solution

The fourth proportional to 20,685.39, 30,794.12 and 20,562.37 is: 30,610.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,685.39 : 30,794.12 = 20,562.37 : x
  2. Step 2: Convert to fraction form
    20,685.39/30,794.12 = 20,562.37/x
  3. Step 3: Cross multiply
    20,685.39x = 30,794.12 × 20,562.37
  4. Step 4: Simplify right side
    20,685.39x = 633,199,986.45
  5. Step 5: Solve for x
    x = 633,199,986.45/20,685.39
  6. Step 6: Final answer
    x = 30,610.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.