Home / 39,342.12-58,929.94-31,813.39

Finding the Fourth Proportional to 39,342.12, 58,929.94 and 31,813.39

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Solution

The fourth proportional to 39,342.12, 58,929.94 and 31,813.39 is: 47,652.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,342.12 : 58,929.94 = 31,813.39 : x
  2. Step 2: Convert to fraction form
    39,342.12/58,929.94 = 31,813.39/x
  3. Step 3: Cross multiply
    39,342.12x = 58,929.94 × 31,813.39
  4. Step 4: Simplify right side
    39,342.12x = 1,874,761,163.90
  5. Step 5: Solve for x
    x = 1,874,761,163.90/39,342.12
  6. Step 6: Final answer
    x = 47,652.77

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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.