Home / 47,449.21-65,479.89-28,589.98

Finding the Fourth Proportional to 47,449.21, 65,479.89 and 28,589.98

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Solution

The fourth proportional to 47,449.21, 65,479.89 and 28,589.98 is: 39,454.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,449.21 : 65,479.89 = 28,589.98 : x
  2. Step 2: Convert to fraction form
    47,449.21/65,479.89 = 28,589.98/x
  3. Step 3: Cross multiply
    47,449.21x = 65,479.89 × 28,589.98
  4. Step 4: Simplify right side
    47,449.21x = 1,872,068,745.50
  5. Step 5: Solve for x
    x = 1,872,068,745.50/47,449.21
  6. Step 6: Final answer
    x = 39,454.16

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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.