Home / 28,906.90-43,331.55-13,297.30

Finding the Fourth Proportional to 28,906.90, 43,331.55 and 13,297.30

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Solution

The fourth proportional to 28,906.90, 43,331.55 and 13,297.30 is: 19,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,906.90 : 43,331.55 = 13,297.30 : x
  2. Step 2: Convert to fraction form
    28,906.90/43,331.55 = 13,297.30/x
  3. Step 3: Cross multiply
    28,906.90x = 43,331.55 × 13,297.30
  4. Step 4: Simplify right side
    28,906.90x = 576,192,619.82
  5. Step 5: Solve for x
    x = 576,192,619.82/28,906.90
  6. Step 6: Final answer
    x = 19,932.70

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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.