Home / 31,923.55-47,871.42-10,857.88

Finding the Fourth Proportional to 31,923.55, 47,871.42 and 10,857.88

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Solution

The fourth proportional to 31,923.55, 47,871.42 and 10,857.88 is: 16,282.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,923.55 : 47,871.42 = 10,857.88 : x
  2. Step 2: Convert to fraction form
    31,923.55/47,871.42 = 10,857.88/x
  3. Step 3: Cross multiply
    31,923.55x = 47,871.42 × 10,857.88
  4. Step 4: Simplify right side
    31,923.55x = 519,782,133.79
  5. Step 5: Solve for x
    x = 519,782,133.79/31,923.55
  6. Step 6: Final answer
    x = 16,282.09

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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.