Home / 31,486.43-47,240.58-13,968.56

Finding the Fourth Proportional to 31,486.43, 47,240.58 and 13,968.56

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Solution

The fourth proportional to 31,486.43, 47,240.58 and 13,968.56 is: 20,957.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,486.43 : 47,240.58 = 13,968.56 : x
  2. Step 2: Convert to fraction form
    31,486.43/47,240.58 = 13,968.56/x
  3. Step 3: Cross multiply
    31,486.43x = 47,240.58 × 13,968.56
  4. Step 4: Simplify right side
    31,486.43x = 659,882,876.16
  5. Step 5: Solve for x
    x = 659,882,876.16/31,486.43
  6. Step 6: Final answer
    x = 20,957.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.