Home / 40,905-56,439.18-22,996.44

Finding the Fourth Proportional to 40,905, 56,439.18 and 22,996.44

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Solution

The fourth proportional to 40,905, 56,439.18 and 22,996.44 is: 31,729.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,905 : 56,439.18 = 22,996.44 : x
  2. Step 2: Convert to fraction form
    40,905/56,439.18 = 22,996.44/x
  3. Step 3: Cross multiply
    40,905x = 56,439.18 × 22,996.44
  4. Step 4: Simplify right side
    40,905x = 1,297,900,216.52
  5. Step 5: Solve for x
    x = 1,297,900,216.52/40,905
  6. Step 6: Final answer
    x = 31,729.62

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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.