Home / 31,485.92-47,228.96-13,951.04

Finding the Fourth Proportional to 31,485.92, 47,228.96 and 13,951.04

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Solution

The fourth proportional to 31,485.92, 47,228.96 and 13,951.04 is: 20,926.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,485.92 : 47,228.96 = 13,951.04 : x
  2. Step 2: Convert to fraction form
    31,485.92/47,228.96 = 13,951.04/x
  3. Step 3: Cross multiply
    31,485.92x = 47,228.96 × 13,951.04
  4. Step 4: Simplify right side
    31,485.92x = 658,893,110.12
  5. Step 5: Solve for x
    x = 658,893,110.12/31,485.92
  6. Step 6: Final answer
    x = 20,926.60

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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.