Home / 28,465.31-42,699.78-11,826.69

Finding the Fourth Proportional to 28,465.31, 42,699.78 and 11,826.69

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Solution

The fourth proportional to 28,465.31, 42,699.78 and 11,826.69 is: 17,740.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,465.31 : 42,699.78 = 11,826.69 : x
  2. Step 2: Convert to fraction form
    28,465.31/42,699.78 = 11,826.69/x
  3. Step 3: Cross multiply
    28,465.31x = 42,699.78 × 11,826.69
  4. Step 4: Simplify right side
    28,465.31x = 504,997,061.13
  5. Step 5: Solve for x
    x = 504,997,061.13/28,465.31
  6. Step 6: Final answer
    x = 17,740.79

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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.