Home / 13,333.55-20,000.31-3,472.80

Finding the Fourth Proportional to 13,333.55, 20,000.31 and 3,472.80

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Solution

The fourth proportional to 13,333.55, 20,000.31 and 3,472.80 is: 5,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.55 : 20,000.31 = 3,472.80 : x
  2. Step 2: Convert to fraction form
    13,333.55/20,000.31 = 3,472.80/x
  3. Step 3: Cross multiply
    13,333.55x = 20,000.31 × 3,472.80
  4. Step 4: Simplify right side
    13,333.55x = 69,457,076.57
  5. Step 5: Solve for x
    x = 69,457,076.57/13,333.55
  6. Step 6: Final answer
    x = 5,209.20

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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.