Home / 20,296.60-27,991.10-16,904.87

Finding the Fourth Proportional to 20,296.60, 27,991.10 and 16,904.87

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Solution

The fourth proportional to 20,296.60, 27,991.10 and 16,904.87 is: 23,313.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,296.60 : 27,991.10 = 16,904.87 : x
  2. Step 2: Convert to fraction form
    20,296.60/27,991.10 = 16,904.87/x
  3. Step 3: Cross multiply
    20,296.60x = 27,991.10 × 16,904.87
  4. Step 4: Simplify right side
    20,296.60x = 473,185,913.93
  5. Step 5: Solve for x
    x = 473,185,913.93/20,296.60
  6. Step 6: Final answer
    x = 23,313.56

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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.