Home / 31,860.75-47,785.74-9,668.78

Finding the Fourth Proportional to 31,860.75, 47,785.74 and 9,668.78

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Solution

The fourth proportional to 31,860.75, 47,785.74 and 9,668.78 is: 14,501.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,860.75 : 47,785.74 = 9,668.78 : x
  2. Step 2: Convert to fraction form
    31,860.75/47,785.74 = 9,668.78/x
  3. Step 3: Cross multiply
    31,860.75x = 47,785.74 × 9,668.78
  4. Step 4: Simplify right side
    31,860.75x = 462,029,568.27
  5. Step 5: Solve for x
    x = 462,029,568.27/31,860.75
  6. Step 6: Final answer
    x = 14,501.53

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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.