Home / 31,364.28-43,263-18,608.42

Finding the Fourth Proportional to 31,364.28, 43,263 and 18,608.42

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Solution

The fourth proportional to 31,364.28, 43,263 and 18,608.42 is: 25,667.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,364.28 : 43,263 = 18,608.42 : x
  2. Step 2: Convert to fraction form
    31,364.28/43,263 = 18,608.42/x
  3. Step 3: Cross multiply
    31,364.28x = 43,263 × 18,608.42
  4. Step 4: Simplify right side
    31,364.28x = 805,056,182.62
  5. Step 5: Solve for x
    x = 805,056,182.62/31,364.28
  6. Step 6: Final answer
    x = 25,667.93

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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.