Home / 39,025.05-58,531.64-12,729.75

Finding the Fourth Proportional to 39,025.05, 58,531.64 and 12,729.75

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Solution

The fourth proportional to 39,025.05, 58,531.64 and 12,729.75 is: 19,092.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,025.05 : 58,531.64 = 12,729.75 : x
  2. Step 2: Convert to fraction form
    39,025.05/58,531.64 = 12,729.75/x
  3. Step 3: Cross multiply
    39,025.05x = 58,531.64 × 12,729.75
  4. Step 4: Simplify right side
    39,025.05x = 745,093,080.64
  5. Step 5: Solve for x
    x = 745,093,080.64/39,025.05
  6. Step 6: Final answer
    x = 19,092.69

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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.