Home / 31,394.52-43,322.04-18,816.84

Finding the Fourth Proportional to 31,394.52, 43,322.04 and 18,816.84

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Solution

The fourth proportional to 31,394.52, 43,322.04 and 18,816.84 is: 25,965.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,394.52 : 43,322.04 = 18,816.84 : x
  2. Step 2: Convert to fraction form
    31,394.52/43,322.04 = 18,816.84/x
  3. Step 3: Cross multiply
    31,394.52x = 43,322.04 × 18,816.84
  4. Step 4: Simplify right side
    31,394.52x = 815,183,895.15
  5. Step 5: Solve for x
    x = 815,183,895.15/31,394.52
  6. Step 6: Final answer
    x = 25,965.80

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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.