Home / 28,579.24-39,429.48-17,969.68

Finding the Fourth Proportional to 28,579.24, 39,429.48 and 17,969.68

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Solution

The fourth proportional to 28,579.24, 39,429.48 and 17,969.68 is: 24,791.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579.24 : 39,429.48 = 17,969.68 : x
  2. Step 2: Convert to fraction form
    28,579.24/39,429.48 = 17,969.68/x
  3. Step 3: Cross multiply
    28,579.24x = 39,429.48 × 17,969.68
  4. Step 4: Simplify right side
    28,579.24x = 708,535,138.17
  5. Step 5: Solve for x
    x = 708,535,138.17/28,579.24
  6. Step 6: Final answer
    x = 24,791.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.