Home / 19,969.77-29,952.09-5,179.71

Finding the Fourth Proportional to 19,969.77, 29,952.09 and 5,179.71

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Solution

The fourth proportional to 19,969.77, 29,952.09 and 5,179.71 is: 7,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,969.77 : 29,952.09 = 5,179.71 : x
  2. Step 2: Convert to fraction form
    19,969.77/29,952.09 = 5,179.71/x
  3. Step 3: Cross multiply
    19,969.77x = 29,952.09 × 5,179.71
  4. Step 4: Simplify right side
    19,969.77x = 155,143,140.09
  5. Step 5: Solve for x
    x = 155,143,140.09/19,969.77
  6. Step 6: Final answer
    x = 7,768.90

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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.