Home / 28,901.70-43,351.94-13,319.33

Finding the Fourth Proportional to 28,901.70, 43,351.94 and 13,319.33

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Solution

The fourth proportional to 28,901.70, 43,351.94 and 13,319.33 is: 19,978.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,901.70 : 43,351.94 = 13,319.33 : x
  2. Step 2: Convert to fraction form
    28,901.70/43,351.94 = 13,319.33/x
  3. Step 3: Cross multiply
    28,901.70x = 43,351.94 × 13,319.33
  4. Step 4: Simplify right side
    28,901.70x = 577,418,611.54
  5. Step 5: Solve for x
    x = 577,418,611.54/28,901.70
  6. Step 6: Final answer
    x = 19,978.71

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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.