Home / 20,235.28-27,924.60-13,530.64

Finding the Fourth Proportional to 20,235.28, 27,924.60 and 13,530.64

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Solution

The fourth proportional to 20,235.28, 27,924.60 and 13,530.64 is: 18,672.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.28 : 27,924.60 = 13,530.64 : x
  2. Step 2: Convert to fraction form
    20,235.28/27,924.60 = 13,530.64/x
  3. Step 3: Cross multiply
    20,235.28x = 27,924.60 × 13,530.64
  4. Step 4: Simplify right side
    20,235.28x = 377,837,709.74
  5. Step 5: Solve for x
    x = 377,837,709.74/20,235.28
  6. Step 6: Final answer
    x = 18,672.23

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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.