Home / 31,217.50-46,826.30-12,749.50

Finding the Fourth Proportional to 31,217.50, 46,826.30 and 12,749.50

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Solution

The fourth proportional to 31,217.50, 46,826.30 and 12,749.50 is: 19,124.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,217.50 : 46,826.30 = 12,749.50 : x
  2. Step 2: Convert to fraction form
    31,217.50/46,826.30 = 12,749.50/x
  3. Step 3: Cross multiply
    31,217.50x = 46,826.30 × 12,749.50
  4. Step 4: Simplify right side
    31,217.50x = 597,011,911.85
  5. Step 5: Solve for x
    x = 597,011,911.85/31,217.50
  6. Step 6: Final answer
    x = 19,124.27

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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.