Home / 31,449.24-43,390.64-18,695.93

Finding the Fourth Proportional to 31,449.24, 43,390.64 and 18,695.93

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Solution

The fourth proportional to 31,449.24, 43,390.64 and 18,695.93 is: 25,794.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,449.24 : 43,390.64 = 18,695.93 : x
  2. Step 2: Convert to fraction form
    31,449.24/43,390.64 = 18,695.93/x
  3. Step 3: Cross multiply
    31,449.24x = 43,390.64 × 18,695.93
  4. Step 4: Simplify right side
    31,449.24x = 811,228,197.88
  5. Step 5: Solve for x
    x = 811,228,197.88/31,449.24
  6. Step 6: Final answer
    x = 25,794.84

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1.5x scale

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.