Home / 28,931.21-43,358.89-16,456.97

Finding the Fourth Proportional to 28,931.21, 43,358.89 and 16,456.97

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Solution

The fourth proportional to 28,931.21, 43,358.89 and 16,456.97 is: 24,663.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931.21 : 43,358.89 = 16,456.97 : x
  2. Step 2: Convert to fraction form
    28,931.21/43,358.89 = 16,456.97/x
  3. Step 3: Cross multiply
    28,931.21x = 43,358.89 × 16,456.97
  4. Step 4: Simplify right side
    28,931.21x = 713,555,951.96
  5. Step 5: Solve for x
    x = 713,555,951.96/28,931.21
  6. Step 6: Final answer
    x = 24,663.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.