Home / 31,777.57-47,660.68-11,784.75

Finding the Fourth Proportional to 31,777.57, 47,660.68 and 11,784.75

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Solution

The fourth proportional to 31,777.57, 47,660.68 and 11,784.75 is: 17,675.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,777.57 : 47,660.68 = 11,784.75 : x
  2. Step 2: Convert to fraction form
    31,777.57/47,660.68 = 11,784.75/x
  3. Step 3: Cross multiply
    31,777.57x = 47,660.68 × 11,784.75
  4. Step 4: Simplify right side
    31,777.57x = 561,669,198.63
  5. Step 5: Solve for x
    x = 561,669,198.63/31,777.57
  6. Step 6: Final answer
    x = 17,675.02

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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.