Home / 20,426.84-28,191.67-11,474.34

Finding the Fourth Proportional to 20,426.84, 28,191.67 and 11,474.34

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Solution

The fourth proportional to 20,426.84, 28,191.67 and 11,474.34 is: 15,836.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426.84 : 28,191.67 = 11,474.34 : x
  2. Step 2: Convert to fraction form
    20,426.84/28,191.67 = 11,474.34/x
  3. Step 3: Cross multiply
    20,426.84x = 28,191.67 × 11,474.34
  4. Step 4: Simplify right side
    20,426.84x = 323,480,806.75
  5. Step 5: Solve for x
    x = 323,480,806.75/20,426.84
  6. Step 6: Final answer
    x = 15,836.07

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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.