Home / 31,785.18-47,684.97-16,986.30

Finding the Fourth Proportional to 31,785.18, 47,684.97 and 16,986.30

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Solution

The fourth proportional to 31,785.18, 47,684.97 and 16,986.30 is: 25,483.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,785.18 : 47,684.97 = 16,986.30 : x
  2. Step 2: Convert to fraction form
    31,785.18/47,684.97 = 16,986.30/x
  3. Step 3: Cross multiply
    31,785.18x = 47,684.97 × 16,986.30
  4. Step 4: Simplify right side
    31,785.18x = 809,991,205.91
  5. Step 5: Solve for x
    x = 809,991,205.91/31,785.18
  6. Step 6: Final answer
    x = 25,483.30

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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.