Home / 31,914.61-47,872.16-11,928.62

Finding the Fourth Proportional to 31,914.61, 47,872.16 and 11,928.62

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Solution

The fourth proportional to 31,914.61, 47,872.16 and 11,928.62 is: 17,893.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,914.61 : 47,872.16 = 11,928.62 : x
  2. Step 2: Convert to fraction form
    31,914.61/47,872.16 = 11,928.62/x
  3. Step 3: Cross multiply
    31,914.61x = 47,872.16 × 11,928.62
  4. Step 4: Simplify right side
    31,914.61x = 571,048,707.81
  5. Step 5: Solve for x
    x = 571,048,707.81/31,914.61
  6. Step 6: Final answer
    x = 17,893.02

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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.