Home / 40,821.12-56,336.40-22,917.30

Finding the Fourth Proportional to 40,821.12, 56,336.40 and 22,917.30

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Solution

The fourth proportional to 40,821.12, 56,336.40 and 22,917.30 is: 31,627.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,821.12 : 56,336.40 = 22,917.30 : x
  2. Step 2: Convert to fraction form
    40,821.12/56,336.40 = 22,917.30/x
  3. Step 3: Cross multiply
    40,821.12x = 56,336.40 × 22,917.30
  4. Step 4: Simplify right side
    40,821.12x = 1,291,078,179.72
  5. Step 5: Solve for x
    x = 1,291,078,179.72/40,821.12
  6. Step 6: Final answer
    x = 31,627.70

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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.