Home / 19,660.80-29,473.92-9,285.12

Finding the Fourth Proportional to 19,660.80, 29,473.92 and 9,285.12

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Solution

The fourth proportional to 19,660.80, 29,473.92 and 9,285.12 is: 13,919.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660.80 : 29,473.92 = 9,285.12 : x
  2. Step 2: Convert to fraction form
    19,660.80/29,473.92 = 9,285.12/x
  3. Step 3: Cross multiply
    19,660.80x = 29,473.92 × 9,285.12
  4. Step 4: Simplify right side
    19,660.80x = 273,668,884.07
  5. Step 5: Solve for x
    x = 273,668,884.07/19,660.80
  6. Step 6: Final answer
    x = 13,919.52

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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.