Home / 28,793.65-39,720.06-19,825.59

Finding the Fourth Proportional to 28,793.65, 39,720.06 and 19,825.59

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Solution

The fourth proportional to 28,793.65, 39,720.06 and 19,825.59 is: 27,348.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793.65 : 39,720.06 = 19,825.59 : x
  2. Step 2: Convert to fraction form
    28,793.65/39,720.06 = 19,825.59/x
  3. Step 3: Cross multiply
    28,793.65x = 39,720.06 × 19,825.59
  4. Step 4: Simplify right side
    28,793.65x = 787,473,624.34
  5. Step 5: Solve for x
    x = 787,473,624.34/28,793.65
  6. Step 6: Final answer
    x = 27,348.86

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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.