Home / 21,670.88-32,503.44-8,519.72

Finding the Fourth Proportional to 21,670.88, 32,503.44 and 8,519.72

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Solution

The fourth proportional to 21,670.88, 32,503.44 and 8,519.72 is: 12,778.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,670.88 : 32,503.44 = 8,519.72 : x
  2. Step 2: Convert to fraction form
    21,670.88/32,503.44 = 8,519.72/x
  3. Step 3: Cross multiply
    21,670.88x = 32,503.44 × 8,519.72
  4. Step 4: Simplify right side
    21,670.88x = 276,920,207.84
  5. Step 5: Solve for x
    x = 276,920,207.84/21,670.88
  6. Step 6: Final answer
    x = 12,778.45

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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.