Home / 28,699.11-43,051.10-7,922.61

Finding the Fourth Proportional to 28,699.11, 43,051.10 and 7,922.61

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Solution

The fourth proportional to 28,699.11, 43,051.10 and 7,922.61 is: 11,884.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.11 : 43,051.10 = 7,922.61 : x
  2. Step 2: Convert to fraction form
    28,699.11/43,051.10 = 7,922.61/x
  3. Step 3: Cross multiply
    28,699.11x = 43,051.10 × 7,922.61
  4. Step 4: Simplify right side
    28,699.11x = 341,077,035.76
  5. Step 5: Solve for x
    x = 341,077,035.76/28,699.11
  6. Step 6: Final answer
    x = 11,884.59

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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.