Home / 21,968.45-32,946.25-12,606.87

Finding the Fourth Proportional to 21,968.45, 32,946.25 and 12,606.87

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Solution

The fourth proportional to 21,968.45, 32,946.25 and 12,606.87 is: 18,906.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,968.45 : 32,946.25 = 12,606.87 : x
  2. Step 2: Convert to fraction form
    21,968.45/32,946.25 = 12,606.87/x
  3. Step 3: Cross multiply
    21,968.45x = 32,946.25 × 12,606.87
  4. Step 4: Simplify right side
    21,968.45x = 415,349,090.74
  5. Step 5: Solve for x
    x = 415,349,090.74/21,968.45
  6. Step 6: Final answer
    x = 18,906.62

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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.