Home / 31,247.64-46,871.46-10,485.72

Finding the Fourth Proportional to 31,247.64, 46,871.46 and 10,485.72

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Solution

The fourth proportional to 31,247.64, 46,871.46 and 10,485.72 is: 15,728.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,247.64 : 46,871.46 = 10,485.72 : x
  2. Step 2: Convert to fraction form
    31,247.64/46,871.46 = 10,485.72/x
  3. Step 3: Cross multiply
    31,247.64x = 46,871.46 × 10,485.72
  4. Step 4: Simplify right side
    31,247.64x = 491,481,005.55
  5. Step 5: Solve for x
    x = 491,481,005.55/31,247.64
  6. Step 6: Final answer
    x = 15,728.58

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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.