Home / 31,622.99-47,434.49-12,911.84

Finding the Fourth Proportional to 31,622.99, 47,434.49 and 12,911.84

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Solution

The fourth proportional to 31,622.99, 47,434.49 and 12,911.84 is: 19,367.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,622.99 : 47,434.49 = 12,911.84 : x
  2. Step 2: Convert to fraction form
    31,622.99/47,434.49 = 12,911.84/x
  3. Step 3: Cross multiply
    31,622.99x = 47,434.49 × 12,911.84
  4. Step 4: Simplify right side
    31,622.99x = 612,466,715.44
  5. Step 5: Solve for x
    x = 612,466,715.44/31,622.99
  6. Step 6: Final answer
    x = 19,367.76

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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.