Home / 31,305.29-46,958.13-7,931.72

Finding the Fourth Proportional to 31,305.29, 46,958.13 and 7,931.72

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Solution

The fourth proportional to 31,305.29, 46,958.13 and 7,931.72 is: 11,897.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,305.29 : 46,958.13 = 7,931.72 : x
  2. Step 2: Convert to fraction form
    31,305.29/46,958.13 = 7,931.72/x
  3. Step 3: Cross multiply
    31,305.29x = 46,958.13 × 7,931.72
  4. Step 4: Simplify right side
    31,305.29x = 372,458,856.28
  5. Step 5: Solve for x
    x = 372,458,856.28/31,305.29
  6. Step 6: Final answer
    x = 11,897.64

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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.