Home / 41,980.25-57,914-28,363.90

Finding the Fourth Proportional to 41,980.25, 57,914 and 28,363.90

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Solution

The fourth proportional to 41,980.25, 57,914 and 28,363.90 is: 39,129.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,980.25 : 57,914 = 28,363.90 : x
  2. Step 2: Convert to fraction form
    41,980.25/57,914 = 28,363.90/x
  3. Step 3: Cross multiply
    41,980.25x = 57,914 × 28,363.90
  4. Step 4: Simplify right side
    41,980.25x = 1,642,666,904.60
  5. Step 5: Solve for x
    x = 1,642,666,904.60/41,980.25
  6. Step 6: Final answer
    x = 39,129.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.