Home / 20,729.64-28,623.78-16,901.94

Finding the Fourth Proportional to 20,729.64, 28,623.78 and 16,901.94

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Solution

The fourth proportional to 20,729.64, 28,623.78 and 16,901.94 is: 23,338.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729.64 : 28,623.78 = 16,901.94 : x
  2. Step 2: Convert to fraction form
    20,729.64/28,623.78 = 16,901.94/x
  3. Step 3: Cross multiply
    20,729.64x = 28,623.78 × 16,901.94
  4. Step 4: Simplify right side
    20,729.64x = 483,797,412.13
  5. Step 5: Solve for x
    x = 483,797,412.13/20,729.64
  6. Step 6: Final answer
    x = 23,338.44

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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.