Home / 20,736.40-31,057.26-16,283.92

Finding the Fourth Proportional to 20,736.40, 31,057.26 and 16,283.92

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Solution

The fourth proportional to 20,736.40, 31,057.26 and 16,283.92 is: 24,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.40 : 31,057.26 = 16,283.92 : x
  2. Step 2: Convert to fraction form
    20,736.40/31,057.26 = 16,283.92/x
  3. Step 3: Cross multiply
    20,736.40x = 31,057.26 × 16,283.92
  4. Step 4: Simplify right side
    20,736.40x = 505,733,937.26
  5. Step 5: Solve for x
    x = 505,733,937.26/20,736.40
  6. Step 6: Final answer
    x = 24,388.70

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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.