Home / 30,157.41-45,221.73-13,517.58

Finding the Fourth Proportional to 30,157.41, 45,221.73 and 13,517.58

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Solution

The fourth proportional to 30,157.41, 45,221.73 and 13,517.58 is: 20,269.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,157.41 : 45,221.73 = 13,517.58 : x
  2. Step 2: Convert to fraction form
    30,157.41/45,221.73 = 13,517.58/x
  3. Step 3: Cross multiply
    30,157.41x = 45,221.73 × 13,517.58
  4. Step 4: Simplify right side
    30,157.41x = 611,288,353.01
  5. Step 5: Solve for x
    x = 611,288,353.01/30,157.41
  6. Step 6: Final answer
    x = 20,269.92

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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.