Home / 21,722.88-32,584.89-6,931.78

Finding the Fourth Proportional to 21,722.88, 32,584.89 and 6,931.78

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Solution

The fourth proportional to 21,722.88, 32,584.89 and 6,931.78 is: 10,397.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,722.88 : 32,584.89 = 6,931.78 : x
  2. Step 2: Convert to fraction form
    21,722.88/32,584.89 = 6,931.78/x
  3. Step 3: Cross multiply
    21,722.88x = 32,584.89 × 6,931.78
  4. Step 4: Simplify right side
    21,722.88x = 225,871,344.27
  5. Step 5: Solve for x
    x = 225,871,344.27/21,722.88
  6. Step 6: Final answer
    x = 10,397.86

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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.