Home / 28,699.18-43,063.08-19,217.86

Finding the Fourth Proportional to 28,699.18, 43,063.08 and 19,217.86

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Solution

The fourth proportional to 28,699.18, 43,063.08 and 19,217.86 is: 28,836.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.18 : 43,063.08 = 19,217.86 : x
  2. Step 2: Convert to fraction form
    28,699.18/43,063.08 = 19,217.86/x
  3. Step 3: Cross multiply
    28,699.18x = 43,063.08 × 19,217.86
  4. Step 4: Simplify right side
    28,699.18x = 827,580,242.61
  5. Step 5: Solve for x
    x = 827,580,242.61/28,699.18
  6. Step 6: Final answer
    x = 28,836.37

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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.