Home / 20,969.88-31,357.62-16,236.24

Finding the Fourth Proportional to 20,969.88, 31,357.62 and 16,236.24

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Solution

The fourth proportional to 20,969.88, 31,357.62 and 16,236.24 is: 24,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,969.88 : 31,357.62 = 16,236.24 : x
  2. Step 2: Convert to fraction form
    20,969.88/31,357.62 = 16,236.24/x
  3. Step 3: Cross multiply
    20,969.88x = 31,357.62 × 16,236.24
  4. Step 4: Simplify right side
    20,969.88x = 509,129,844.15
  5. Step 5: Solve for x
    x = 509,129,844.15/20,969.88
  6. Step 6: Final answer
    x = 24,279.10

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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.