Home / 55,011.12-82,517.04-13,458.12

Finding the Fourth Proportional to 55,011.12, 82,517.04 and 13,458.12

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Solution

The fourth proportional to 55,011.12, 82,517.04 and 13,458.12 is: 20,187.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,011.12 : 82,517.04 = 13,458.12 : x
  2. Step 2: Convert to fraction form
    55,011.12/82,517.04 = 13,458.12/x
  3. Step 3: Cross multiply
    55,011.12x = 82,517.04 × 13,458.12
  4. Step 4: Simplify right side
    55,011.12x = 1,110,524,226.36
  5. Step 5: Solve for x
    x = 1,110,524,226.36/55,011.12
  6. Step 6: Final answer
    x = 20,187.27

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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.