Home / 39,074.66-58,619.28-12,780.82

Finding the Fourth Proportional to 39,074.66, 58,619.28 and 12,780.82

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Solution

The fourth proportional to 39,074.66, 58,619.28 and 12,780.82 is: 19,173.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,074.66 : 58,619.28 = 12,780.82 : x
  2. Step 2: Convert to fraction form
    39,074.66/58,619.28 = 12,780.82/x
  3. Step 3: Cross multiply
    39,074.66x = 58,619.28 × 12,780.82
  4. Step 4: Simplify right side
    39,074.66x = 749,202,466.21
  5. Step 5: Solve for x
    x = 749,202,466.21/39,074.66
  6. Step 6: Final answer
    x = 19,173.61

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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.