Home / 31,979.54-47,965.62-8,604.14

Finding the Fourth Proportional to 31,979.54, 47,965.62 and 8,604.14

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Solution

The fourth proportional to 31,979.54, 47,965.62 and 8,604.14 is: 12,905.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,979.54 : 47,965.62 = 8,604.14 : x
  2. Step 2: Convert to fraction form
    31,979.54/47,965.62 = 8,604.14/x
  3. Step 3: Cross multiply
    31,979.54x = 47,965.62 × 8,604.14
  4. Step 4: Simplify right side
    31,979.54x = 412,702,909.67
  5. Step 5: Solve for x
    x = 412,702,909.67/31,979.54
  6. Step 6: Final answer
    x = 12,905.22

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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.