Home / 29,128.79-40,197.34-16,381.96

Finding the Fourth Proportional to 29,128.79, 40,197.34 and 16,381.96

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Solution

The fourth proportional to 29,128.79, 40,197.34 and 16,381.96 is: 22,606.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,128.79 : 40,197.34 = 16,381.96 : x
  2. Step 2: Convert to fraction form
    29,128.79/40,197.34 = 16,381.96/x
  3. Step 3: Cross multiply
    29,128.79x = 40,197.34 × 16,381.96
  4. Step 4: Simplify right side
    29,128.79x = 658,511,275.52
  5. Step 5: Solve for x
    x = 658,511,275.52/29,128.79
  6. Step 6: Final answer
    x = 22,606.89

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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.