Home / 30,377.33-41,920.58-16,947.78

Finding the Fourth Proportional to 30,377.33, 41,920.58 and 16,947.78

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Solution

The fourth proportional to 30,377.33, 41,920.58 and 16,947.78 is: 23,387.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,377.33 : 41,920.58 = 16,947.78 : x
  2. Step 2: Convert to fraction form
    30,377.33/41,920.58 = 16,947.78/x
  3. Step 3: Cross multiply
    30,377.33x = 41,920.58 × 16,947.78
  4. Step 4: Simplify right side
    30,377.33x = 710,460,682.57
  5. Step 5: Solve for x
    x = 710,460,682.57/30,377.33
  6. Step 6: Final answer
    x = 23,387.86

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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.