Home / 31,302.09-46,950.77-9,115.65

Finding the Fourth Proportional to 31,302.09, 46,950.77 and 9,115.65

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Solution

The fourth proportional to 31,302.09, 46,950.77 and 9,115.65 is: 13,672.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,302.09 : 46,950.77 = 9,115.65 : x
  2. Step 2: Convert to fraction form
    31,302.09/46,950.77 = 9,115.65/x
  3. Step 3: Cross multiply
    31,302.09x = 46,950.77 × 9,115.65
  4. Step 4: Simplify right side
    31,302.09x = 427,986,740.97
  5. Step 5: Solve for x
    x = 427,986,740.97/31,302.09
  6. Step 6: Final answer
    x = 13,672.78

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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.