Home / 31,628.70-47,443.37-12,903.73

Finding the Fourth Proportional to 31,628.70, 47,443.37 and 12,903.73

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Solution

The fourth proportional to 31,628.70, 47,443.37 and 12,903.73 is: 19,355.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,628.70 : 47,443.37 = 12,903.73 : x
  2. Step 2: Convert to fraction form
    31,628.70/47,443.37 = 12,903.73/x
  3. Step 3: Cross multiply
    31,628.70x = 47,443.37 × 12,903.73
  4. Step 4: Simplify right side
    31,628.70x = 612,196,253.64
  5. Step 5: Solve for x
    x = 612,196,253.64/31,628.70
  6. Step 6: Final answer
    x = 19,355.72

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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.