Home / 31,212.74-46,819.22-7,839.18

Finding the Fourth Proportional to 31,212.74, 46,819.22 and 7,839.18

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Solution

The fourth proportional to 31,212.74, 46,819.22 and 7,839.18 is: 11,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,212.74 : 46,819.22 = 7,839.18 : x
  2. Step 2: Convert to fraction form
    31,212.74/46,819.22 = 7,839.18/x
  3. Step 3: Cross multiply
    31,212.74x = 46,819.22 × 7,839.18
  4. Step 4: Simplify right side
    31,212.74x = 367,024,253.84
  5. Step 5: Solve for x
    x = 367,024,253.84/31,212.74
  6. Step 6: Final answer
    x = 11,758.80

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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.