Home / 20,434.88-30,713.48-16,947.84

Finding the Fourth Proportional to 20,434.88, 30,713.48 and 16,947.84

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Solution

The fourth proportional to 20,434.88, 30,713.48 and 16,947.84 is: 25,472.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.88 : 30,713.48 = 16,947.84 : x
  2. Step 2: Convert to fraction form
    20,434.88/30,713.48 = 16,947.84/x
  3. Step 3: Cross multiply
    20,434.88x = 30,713.48 × 16,947.84
  4. Step 4: Simplify right side
    20,434.88x = 520,527,144.88
  5. Step 5: Solve for x
    x = 520,527,144.88/20,434.88
  6. Step 6: Final answer
    x = 25,472.48

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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.