Home / 40,141.35-55,377.60-28,212.48

Finding the Fourth Proportional to 40,141.35, 55,377.60 and 28,212.48

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Solution

The fourth proportional to 40,141.35, 55,377.60 and 28,212.48 is: 38,920.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,141.35 : 55,377.60 = 28,212.48 : x
  2. Step 2: Convert to fraction form
    40,141.35/55,377.60 = 28,212.48/x
  3. Step 3: Cross multiply
    40,141.35x = 55,377.60 × 28,212.48
  4. Step 4: Simplify right side
    40,141.35x = 1,562,339,432.45
  5. Step 5: Solve for x
    x = 1,562,339,432.45/40,141.35
  6. Step 6: Final answer
    x = 38,920.95

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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.