Home / 21,571.41-32,358.51-6,780.95

Finding the Fourth Proportional to 21,571.41, 32,358.51 and 6,780.95

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Solution

The fourth proportional to 21,571.41, 32,358.51 and 6,780.95 is: 10,171.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,571.41 : 32,358.51 = 6,780.95 : x
  2. Step 2: Convert to fraction form
    21,571.41/32,358.51 = 6,780.95/x
  3. Step 3: Cross multiply
    21,571.41x = 32,358.51 × 6,780.95
  4. Step 4: Simplify right side
    21,571.41x = 219,421,438.38
  5. Step 5: Solve for x
    x = 219,421,438.38/21,571.41
  6. Step 6: Final answer
    x = 10,171.86

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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.