Home / 31,301.93-46,960.60-9,115.51

Finding the Fourth Proportional to 31,301.93, 46,960.60 and 9,115.51

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Solution

The fourth proportional to 31,301.93, 46,960.60 and 9,115.51 is: 13,675.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,301.93 : 46,960.60 = 9,115.51 : x
  2. Step 2: Convert to fraction form
    31,301.93/46,960.60 = 9,115.51/x
  3. Step 3: Cross multiply
    31,301.93x = 46,960.60 × 9,115.51
  4. Step 4: Simplify right side
    31,301.93x = 428,069,818.91
  5. Step 5: Solve for x
    x = 428,069,818.91/31,301.93
  6. Step 6: Final answer
    x = 13,675.51

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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.