Home / 31,917.99-47,880.26-12,213.12

Finding the Fourth Proportional to 31,917.99, 47,880.26 and 12,213.12

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Solution

The fourth proportional to 31,917.99, 47,880.26 and 12,213.12 is: 18,320.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,917.99 : 47,880.26 = 12,213.12 : x
  2. Step 2: Convert to fraction form
    31,917.99/47,880.26 = 12,213.12/x
  3. Step 3: Cross multiply
    31,917.99x = 47,880.26 × 12,213.12
  4. Step 4: Simplify right side
    31,917.99x = 584,767,299.95
  5. Step 5: Solve for x
    x = 584,767,299.95/31,917.99
  6. Step 6: Final answer
    x = 18,320.93

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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.