Home / 36,986.04-55,477.62-20,379

Finding the Fourth Proportional to 36,986.04, 55,477.62 and 20,379

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Solution

The fourth proportional to 36,986.04, 55,477.62 and 20,379 is: 30,567.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,986.04 : 55,477.62 = 20,379 : x
  2. Step 2: Convert to fraction form
    36,986.04/55,477.62 = 20,379/x
  3. Step 3: Cross multiply
    36,986.04x = 55,477.62 × 20,379
  4. Step 4: Simplify right side
    36,986.04x = 1,130,578,417.98
  5. Step 5: Solve for x
    x = 1,130,578,417.98/36,986.04
  6. Step 6: Final answer
    x = 30,567.71

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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.