Home / 31,328.22-47,015.68-12,608.42

Finding the Fourth Proportional to 31,328.22, 47,015.68 and 12,608.42

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Solution

The fourth proportional to 31,328.22, 47,015.68 and 12,608.42 is: 18,922.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,328.22 : 47,015.68 = 12,608.42 : x
  2. Step 2: Convert to fraction form
    31,328.22/47,015.68 = 12,608.42/x
  3. Step 3: Cross multiply
    31,328.22x = 47,015.68 × 12,608.42
  4. Step 4: Simplify right side
    31,328.22x = 592,793,440.03
  5. Step 5: Solve for x
    x = 592,793,440.03/31,328.22
  6. Step 6: Final answer
    x = 18,922.03

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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.