Home / 31,493.31-47,239.14-12,768.33

Finding the Fourth Proportional to 31,493.31, 47,239.14 and 12,768.33

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Solution

The fourth proportional to 31,493.31, 47,239.14 and 12,768.33 is: 19,152.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,493.31 : 47,239.14 = 12,768.33 : x
  2. Step 2: Convert to fraction form
    31,493.31/47,239.14 = 12,768.33/x
  3. Step 3: Cross multiply
    31,493.31x = 47,239.14 × 12,768.33
  4. Step 4: Simplify right side
    31,493.31x = 603,164,928.44
  5. Step 5: Solve for x
    x = 603,164,928.44/31,493.31
  6. Step 6: Final answer
    x = 19,152.16

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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.