Home / 21,669.91-32,512.93-13,253.67

Finding the Fourth Proportional to 21,669.91, 32,512.93 and 13,253.67

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Solution

The fourth proportional to 21,669.91, 32,512.93 and 13,253.67 is: 19,885.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,669.91 : 32,512.93 = 13,253.67 : x
  2. Step 2: Convert to fraction form
    21,669.91/32,512.93 = 13,253.67/x
  3. Step 3: Cross multiply
    21,669.91x = 32,512.93 × 13,253.67
  4. Step 4: Simplify right side
    21,669.91x = 430,915,611.82
  5. Step 5: Solve for x
    x = 430,915,611.82/21,669.91
  6. Step 6: Final answer
    x = 19,885.44

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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.