Home / 31,814.70-47,703.85-13,107.65

Finding the Fourth Proportional to 31,814.70, 47,703.85 and 13,107.65

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Solution

The fourth proportional to 31,814.70, 47,703.85 and 13,107.65 is: 19,653.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,814.70 : 47,703.85 = 13,107.65 : x
  2. Step 2: Convert to fraction form
    31,814.70/47,703.85 = 13,107.65/x
  3. Step 3: Cross multiply
    31,814.70x = 47,703.85 × 13,107.65
  4. Step 4: Simplify right side
    31,814.70x = 625,285,292.24
  5. Step 5: Solve for x
    x = 625,285,292.24/31,814.70
  6. Step 6: Final answer
    x = 19,653.97

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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.