Home / 31,302.05-46,960.78-9,115.64

Finding the Fourth Proportional to 31,302.05, 46,960.78 and 9,115.64

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Solution

The fourth proportional to 31,302.05, 46,960.78 and 9,115.64 is: 13,675.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,302.05 : 46,960.78 = 9,115.64 : x
  2. Step 2: Convert to fraction form
    31,302.05/46,960.78 = 9,115.64/x
  3. Step 3: Cross multiply
    31,302.05x = 46,960.78 × 9,115.64
  4. Step 4: Simplify right side
    31,302.05x = 428,077,564.60
  5. Step 5: Solve for x
    x = 428,077,564.60/31,302.05
  6. Step 6: Final answer
    x = 13,675.70

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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.