Home / 40,378.96-60,580.85-20,671.35

Finding the Fourth Proportional to 40,378.96, 60,580.85 and 20,671.35

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Solution

The fourth proportional to 40,378.96, 60,580.85 and 20,671.35 is: 31,013.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,378.96 : 60,580.85 = 20,671.35 : x
  2. Step 2: Convert to fraction form
    40,378.96/60,580.85 = 20,671.35/x
  3. Step 3: Cross multiply
    40,378.96x = 60,580.85 × 20,671.35
  4. Step 4: Simplify right side
    40,378.96x = 1,252,287,963.88
  5. Step 5: Solve for x
    x = 1,252,287,963.88/40,378.96
  6. Step 6: Final answer
    x = 31,013.38

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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.