Home / 31,532.90-47,311.97-12,814.37

Finding the Fourth Proportional to 31,532.90, 47,311.97 and 12,814.37

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Solution

The fourth proportional to 31,532.90, 47,311.97 and 12,814.37 is: 19,226.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,532.90 : 47,311.97 = 12,814.37 : x
  2. Step 2: Convert to fraction form
    31,532.90/47,311.97 = 12,814.37/x
  3. Step 3: Cross multiply
    31,532.90x = 47,311.97 × 12,814.37
  4. Step 4: Simplify right side
    31,532.90x = 606,272,965.80
  5. Step 5: Solve for x
    x = 606,272,965.80/31,532.90
  6. Step 6: Final answer
    x = 19,226.68

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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.