Home / 21,968.36-32,946.14-12,606.78

Finding the Fourth Proportional to 21,968.36, 32,946.14 and 12,606.78

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Solution

The fourth proportional to 21,968.36, 32,946.14 and 12,606.78 is: 18,906.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,968.36 : 32,946.14 = 12,606.78 : x
  2. Step 2: Convert to fraction form
    21,968.36/32,946.14 = 12,606.78/x
  3. Step 3: Cross multiply
    21,968.36x = 32,946.14 × 12,606.78
  4. Step 4: Simplify right side
    21,968.36x = 415,344,738.83
  5. Step 5: Solve for x
    x = 415,344,738.83/21,968.36
  6. Step 6: Final answer
    x = 18,906.50

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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.