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Finding the Fourth Proportional to 40,805, 56,310.18 and 22,898.60

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Solution

The fourth proportional to 40,805, 56,310.18 and 22,898.60 is: 31,599.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,805 : 56,310.18 = 22,898.60 : x
  2. Step 2: Convert to fraction form
    40,805/56,310.18 = 22,898.60/x
  3. Step 3: Cross multiply
    40,805x = 56,310.18 × 22,898.60
  4. Step 4: Simplify right side
    40,805x = 1,289,424,287.75
  5. Step 5: Solve for x
    x = 1,289,424,287.75/40,805
  6. Step 6: Final answer
    x = 31,599.66

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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.