Home / 21,753.24-32,622.97-13,420.77

Finding the Fourth Proportional to 21,753.24, 32,622.97 and 13,420.77

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Solution

The fourth proportional to 21,753.24, 32,622.97 and 13,420.77 is: 20,126.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,753.24 : 32,622.97 = 13,420.77 : x
  2. Step 2: Convert to fraction form
    21,753.24/32,622.97 = 13,420.77/x
  3. Step 3: Cross multiply
    21,753.24x = 32,622.97 × 13,420.77
  4. Step 4: Simplify right side
    21,753.24x = 437,825,377.09
  5. Step 5: Solve for x
    x = 437,825,377.09/21,753.24
  6. Step 6: Final answer
    x = 20,126.90

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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.