Home / 38,725.12-58,033.61-20,917.39

Finding the Fourth Proportional to 38,725.12, 58,033.61 and 20,917.39

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Solution

The fourth proportional to 38,725.12, 58,033.61 and 20,917.39 is: 31,346.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,725.12 : 58,033.61 = 20,917.39 : x
  2. Step 2: Convert to fraction form
    38,725.12/58,033.61 = 20,917.39/x
  3. Step 3: Cross multiply
    38,725.12x = 58,033.61 × 20,917.39
  4. Step 4: Simplify right side
    38,725.12x = 1,213,911,653.48
  5. Step 5: Solve for x
    x = 1,213,911,653.48/38,725.12
  6. Step 6: Final answer
    x = 31,346.88

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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.