Home / 31,212.80-46,819.20-12,501.80

Finding the Fourth Proportional to 31,212.80, 46,819.20 and 12,501.80

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Solution

The fourth proportional to 31,212.80, 46,819.20 and 12,501.80 is: 18,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,212.80 : 46,819.20 = 12,501.80 : x
  2. Step 2: Convert to fraction form
    31,212.80/46,819.20 = 12,501.80/x
  3. Step 3: Cross multiply
    31,212.80x = 46,819.20 × 12,501.80
  4. Step 4: Simplify right side
    31,212.80x = 585,324,274.56
  5. Step 5: Solve for x
    x = 585,324,274.56/31,212.80
  6. Step 6: Final answer
    x = 18,752.70

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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.