Home / 28,148.46-38,847.54-16,818

Finding the Fourth Proportional to 28,148.46, 38,847.54 and 16,818

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Solution

The fourth proportional to 28,148.46, 38,847.54 and 16,818 is: 23,210.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,148.46 : 38,847.54 = 16,818 : x
  2. Step 2: Convert to fraction form
    28,148.46/38,847.54 = 16,818/x
  3. Step 3: Cross multiply
    28,148.46x = 38,847.54 × 16,818
  4. Step 4: Simplify right side
    28,148.46x = 653,337,927.72
  5. Step 5: Solve for x
    x = 653,337,927.72/28,148.46
  6. Step 6: Final answer
    x = 23,210.43

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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.