Home / 55,021.80-82,538.17-19,964.19

Finding the Fourth Proportional to 55,021.80, 82,538.17 and 19,964.19

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Solution

The fourth proportional to 55,021.80, 82,538.17 and 19,964.19 is: 29,948.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,021.80 : 82,538.17 = 19,964.19 : x
  2. Step 2: Convert to fraction form
    55,021.80/82,538.17 = 19,964.19/x
  3. Step 3: Cross multiply
    55,021.80x = 82,538.17 × 19,964.19
  4. Step 4: Simplify right side
    55,021.80x = 1,647,807,658.22
  5. Step 5: Solve for x
    x = 1,647,807,658.22/55,021.80
  6. Step 6: Final answer
    x = 29,948.27

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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.