Home / 40,278.21-55,583.90-22,374.88

Finding the Fourth Proportional to 40,278.21, 55,583.90 and 22,374.88

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Solution

The fourth proportional to 40,278.21, 55,583.90 and 22,374.88 is: 30,877.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,278.21 : 55,583.90 = 22,374.88 : x
  2. Step 2: Convert to fraction form
    40,278.21/55,583.90 = 22,374.88/x
  3. Step 3: Cross multiply
    40,278.21x = 55,583.90 × 22,374.88
  4. Step 4: Simplify right side
    40,278.21x = 1,243,683,092.43
  5. Step 5: Solve for x
    x = 1,243,683,092.43/40,278.21
  6. Step 6: Final answer
    x = 30,877.32

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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.