Home / 28,920.32-43,380.48-9,198.92

Finding the Fourth Proportional to 28,920.32, 43,380.48 and 9,198.92

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Solution

The fourth proportional to 28,920.32, 43,380.48 and 9,198.92 is: 13,798.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,920.32 : 43,380.48 = 9,198.92 : x
  2. Step 2: Convert to fraction form
    28,920.32/43,380.48 = 9,198.92/x
  3. Step 3: Cross multiply
    28,920.32x = 43,380.48 × 9,198.92
  4. Step 4: Simplify right side
    28,920.32x = 399,053,565.08
  5. Step 5: Solve for x
    x = 399,053,565.08/28,920.32
  6. Step 6: Final answer
    x = 13,798.38

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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.