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Finding the Fourth Proportional to 40,479, 55,861.26 and 22,574.76

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Solution

The fourth proportional to 40,479, 55,861.26 and 22,574.76 is: 31,153.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,479 : 55,861.26 = 22,574.76 : x
  2. Step 2: Convert to fraction form
    40,479/55,861.26 = 22,574.76/x
  3. Step 3: Cross multiply
    40,479x = 55,861.26 × 22,574.76
  4. Step 4: Simplify right side
    40,479x = 1,261,054,537.80
  5. Step 5: Solve for x
    x = 1,261,054,537.80/40,479
  6. Step 6: Final answer
    x = 31,153.30

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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.