Home / 31,867.12-43,977.72-17,720.92

Finding the Fourth Proportional to 31,867.12, 43,977.72 and 17,720.92

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Solution

The fourth proportional to 31,867.12, 43,977.72 and 17,720.92 is: 24,455.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,867.12 : 43,977.72 = 17,720.92 : x
  2. Step 2: Convert to fraction form
    31,867.12/43,977.72 = 17,720.92/x
  3. Step 3: Cross multiply
    31,867.12x = 43,977.72 × 17,720.92
  4. Step 4: Simplify right side
    31,867.12x = 779,325,657.90
  5. Step 5: Solve for x
    x = 779,325,657.90/31,867.12
  6. Step 6: Final answer
    x = 24,455.48

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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.