Home / 31,832.08-47,736.78-12,105.40

Finding the Fourth Proportional to 31,832.08, 47,736.78 and 12,105.40

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Solution

The fourth proportional to 31,832.08, 47,736.78 and 12,105.40 is: 18,153.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,832.08 : 47,736.78 = 12,105.40 : x
  2. Step 2: Convert to fraction form
    31,832.08/47,736.78 = 12,105.40/x
  3. Step 3: Cross multiply
    31,832.08x = 47,736.78 × 12,105.40
  4. Step 4: Simplify right side
    31,832.08x = 577,872,816.61
  5. Step 5: Solve for x
    x = 577,872,816.61/31,832.08
  6. Step 6: Final answer
    x = 18,153.79

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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.