Home / 28,790.84-43,191.18-13,209.80

Finding the Fourth Proportional to 28,790.84, 43,191.18 and 13,209.80

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Solution

The fourth proportional to 28,790.84, 43,191.18 and 13,209.80 is: 19,816.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790.84 : 43,191.18 = 13,209.80 : x
  2. Step 2: Convert to fraction form
    28,790.84/43,191.18 = 13,209.80/x
  3. Step 3: Cross multiply
    28,790.84x = 43,191.18 × 13,209.80
  4. Step 4: Simplify right side
    28,790.84x = 570,546,849.56
  5. Step 5: Solve for x
    x = 570,546,849.56/28,790.84
  6. Step 6: Final answer
    x = 19,816.96

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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.