Home / 29,308.58-40,445.82-15,879.74

Finding the Fourth Proportional to 29,308.58, 40,445.82 and 15,879.74

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Solution

The fourth proportional to 29,308.58, 40,445.82 and 15,879.74 is: 21,914.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,308.58 : 40,445.82 = 15,879.74 : x
  2. Step 2: Convert to fraction form
    29,308.58/40,445.82 = 15,879.74/x
  3. Step 3: Cross multiply
    29,308.58x = 40,445.82 × 15,879.74
  4. Step 4: Simplify right side
    29,308.58x = 642,269,105.69
  5. Step 5: Solve for x
    x = 642,269,105.69/29,308.58
  6. Step 6: Final answer
    x = 21,914.03

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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.