Home / 21,522.98-32,333.67-20,638.34

Finding the Fourth Proportional to 21,522.98, 32,333.67 and 20,638.34

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Solution

The fourth proportional to 21,522.98, 32,333.67 and 20,638.34 is: 31,004.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,522.98 : 32,333.67 = 20,638.34 : x
  2. Step 2: Convert to fraction form
    21,522.98/32,333.67 = 20,638.34/x
  3. Step 3: Cross multiply
    21,522.98x = 32,333.67 × 20,638.34
  4. Step 4: Simplify right side
    21,522.98x = 667,313,274.91
  5. Step 5: Solve for x
    x = 667,313,274.91/21,522.98
  6. Step 6: Final answer
    x = 31,004.69

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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.