Home / 31,867.17-43,974.98-18,438.64

Finding the Fourth Proportional to 31,867.17, 43,974.98 and 18,438.64

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Solution

The fourth proportional to 31,867.17, 43,974.98 and 18,438.64 is: 25,444.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,867.17 : 43,974.98 = 18,438.64 : x
  2. Step 2: Convert to fraction form
    31,867.17/43,974.98 = 18,438.64/x
  3. Step 3: Cross multiply
    31,867.17x = 43,974.98 × 18,438.64
  4. Step 4: Simplify right side
    31,867.17x = 810,838,825.23
  5. Step 5: Solve for x
    x = 810,838,825.23/31,867.17
  6. Step 6: Final answer
    x = 25,444.34

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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.