Home / 31,910.80-47,866.20-11,134.30

Finding the Fourth Proportional to 31,910.80, 47,866.20 and 11,134.30

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Solution

The fourth proportional to 31,910.80, 47,866.20 and 11,134.30 is: 16,701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,910.80 : 47,866.20 = 11,134.30 : x
  2. Step 2: Convert to fraction form
    31,910.80/47,866.20 = 11,134.30/x
  3. Step 3: Cross multiply
    31,910.80x = 47,866.20 × 11,134.30
  4. Step 4: Simplify right side
    31,910.80x = 532,956,630.66
  5. Step 5: Solve for x
    x = 532,956,630.66/31,910.80
  6. Step 6: Final answer
    x = 16,701.45

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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.