Home / 13,550.60-20,235.85-13,403.99

Finding the Fourth Proportional to 13,550.60, 20,235.85 and 13,403.99

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Solution

The fourth proportional to 13,550.60, 20,235.85 and 13,403.99 is: 20,016.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.60 : 20,235.85 = 13,403.99 : x
  2. Step 2: Convert to fraction form
    13,550.60/20,235.85 = 13,403.99/x
  3. Step 3: Cross multiply
    13,550.60x = 20,235.85 × 13,403.99
  4. Step 4: Simplify right side
    13,550.60x = 271,241,148.12
  5. Step 5: Solve for x
    x = 271,241,148.12/13,550.60
  6. Step 6: Final answer
    x = 20,016.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.