Home / 20,004.75-30,011.58-8,913.87

Finding the Fourth Proportional to 20,004.75, 30,011.58 and 8,913.87

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Solution

The fourth proportional to 20,004.75, 30,011.58 and 8,913.87 is: 13,372.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.75 : 30,011.58 = 8,913.87 : x
  2. Step 2: Convert to fraction form
    20,004.75/30,011.58 = 8,913.87/x
  3. Step 3: Cross multiply
    20,004.75x = 30,011.58 × 8,913.87
  4. Step 4: Simplify right side
    20,004.75x = 267,519,322.61
  5. Step 5: Solve for x
    x = 267,519,322.61/20,004.75
  6. Step 6: Final answer
    x = 13,372.79

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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.