Home / 20,240.28-30,326.40-14,367.78

Finding the Fourth Proportional to 20,240.28, 30,326.40 and 14,367.78

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Solution

The fourth proportional to 20,240.28, 30,326.40 and 14,367.78 is: 21,527.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,240.28 : 30,326.40 = 14,367.78 : x
  2. Step 2: Convert to fraction form
    20,240.28/30,326.40 = 14,367.78/x
  3. Step 3: Cross multiply
    20,240.28x = 30,326.40 × 14,367.78
  4. Step 4: Simplify right side
    20,240.28x = 435,723,043.39
  5. Step 5: Solve for x
    x = 435,723,043.39/20,240.28
  6. Step 6: Final answer
    x = 21,527.52

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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.