Home / 20,566.13-28,353.82-16,331.21

Finding the Fourth Proportional to 20,566.13, 28,353.82 and 16,331.21

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Solution

The fourth proportional to 20,566.13, 28,353.82 and 16,331.21 is: 22,515.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,566.13 : 28,353.82 = 16,331.21 : x
  2. Step 2: Convert to fraction form
    20,566.13/28,353.82 = 16,331.21/x
  3. Step 3: Cross multiply
    20,566.13x = 28,353.82 × 16,331.21
  4. Step 4: Simplify right side
    20,566.13x = 463,052,134.99
  5. Step 5: Solve for x
    x = 463,052,134.99/20,566.13
  6. Step 6: Final answer
    x = 22,515.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.