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Finding the Fourth Proportional to 40,729.42, 56,207.28 and 22,828.42

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Solution

The fourth proportional to 40,729.42, 56,207.28 and 22,828.42 is: 31,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,729.42 : 56,207.28 = 22,828.42 : x
  2. Step 2: Convert to fraction form
    40,729.42/56,207.28 = 22,828.42/x
  3. Step 3: Cross multiply
    40,729.42x = 56,207.28 × 22,828.42
  4. Step 4: Simplify right side
    40,729.42x = 1,283,123,394.90
  5. Step 5: Solve for x
    x = 1,283,123,394.90/40,729.42
  6. Step 6: Final answer
    x = 31,503.60

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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.