Home / 21,076.43-31,614.80-8,593.07

Finding the Fourth Proportional to 21,076.43, 31,614.80 and 8,593.07

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Solution

The fourth proportional to 21,076.43, 31,614.80 and 8,593.07 is: 12,889.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,076.43 : 31,614.80 = 8,593.07 : x
  2. Step 2: Convert to fraction form
    21,076.43/31,614.80 = 8,593.07/x
  3. Step 3: Cross multiply
    21,076.43x = 31,614.80 × 8,593.07
  4. Step 4: Simplify right side
    21,076.43x = 271,667,988.40
  5. Step 5: Solve for x
    x = 271,667,988.40/21,076.43
  6. Step 6: Final answer
    x = 12,889.66

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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.