Home / 20,477.46-30,708.90-7,327.92

Finding the Fourth Proportional to 20,477.46, 30,708.90 and 7,327.92

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Solution

The fourth proportional to 20,477.46, 30,708.90 and 7,327.92 is: 10,989.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477.46 : 30,708.90 = 7,327.92 : x
  2. Step 2: Convert to fraction form
    20,477.46/30,708.90 = 7,327.92/x
  3. Step 3: Cross multiply
    20,477.46x = 30,708.90 × 7,327.92
  4. Step 4: Simplify right side
    20,477.46x = 225,032,362.49
  5. Step 5: Solve for x
    x = 225,032,362.49/20,477.46
  6. Step 6: Final answer
    x = 10,989.27

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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.