Home / 21,610.67-32,415.90-8,453.76

Finding the Fourth Proportional to 21,610.67, 32,415.90 and 8,453.76

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Solution

The fourth proportional to 21,610.67, 32,415.90 and 8,453.76 is: 12,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,610.67 : 32,415.90 = 8,453.76 : x
  2. Step 2: Convert to fraction form
    21,610.67/32,415.90 = 8,453.76/x
  3. Step 3: Cross multiply
    21,610.67x = 32,415.90 × 8,453.76
  4. Step 4: Simplify right side
    21,610.67x = 274,036,238.78
  5. Step 5: Solve for x
    x = 274,036,238.78/21,610.67
  6. Step 6: Final answer
    x = 12,680.60

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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.