Home / 31,481.96-47,223.42-12,511.34

Finding the Fourth Proportional to 31,481.96, 47,223.42 and 12,511.34

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Solution

The fourth proportional to 31,481.96, 47,223.42 and 12,511.34 is: 18,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,481.96 : 47,223.42 = 12,511.34 : x
  2. Step 2: Convert to fraction form
    31,481.96/47,223.42 = 12,511.34/x
  3. Step 3: Cross multiply
    31,481.96x = 47,223.42 × 12,511.34
  4. Step 4: Simplify right side
    31,481.96x = 590,828,263.58
  5. Step 5: Solve for x
    x = 590,828,263.58/31,481.96
  6. Step 6: Final answer
    x = 18,767.20

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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.