Home / 31,533.75-47,313.22-12,815.25

Finding the Fourth Proportional to 31,533.75, 47,313.22 and 12,815.25

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Solution

The fourth proportional to 31,533.75, 47,313.22 and 12,815.25 is: 19,227.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,533.75 : 47,313.22 = 12,815.25 : x
  2. Step 2: Convert to fraction form
    31,533.75/47,313.22 = 12,815.25/x
  3. Step 3: Cross multiply
    31,533.75x = 47,313.22 × 12,815.25
  4. Step 4: Simplify right side
    31,533.75x = 606,330,765.78
  5. Step 5: Solve for x
    x = 606,330,765.78/31,533.75
  6. Step 6: Final answer
    x = 19,227.99

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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.