Home / 20,615.49-30,923.16-7,464.79

Finding the Fourth Proportional to 20,615.49, 30,923.16 and 7,464.79

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Solution

The fourth proportional to 20,615.49, 30,923.16 and 7,464.79 is: 11,197.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,615.49 : 30,923.16 = 7,464.79 : x
  2. Step 2: Convert to fraction form
    20,615.49/30,923.16 = 7,464.79/x
  3. Step 3: Cross multiply
    20,615.49x = 30,923.16 × 7,464.79
  4. Step 4: Simplify right side
    20,615.49x = 230,834,740.92
  5. Step 5: Solve for x
    x = 230,834,740.92/20,615.49
  6. Step 6: Final answer
    x = 11,197.15

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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.