Home / 20,544.75-28,337.15-19,858.88

Finding the Fourth Proportional to 20,544.75, 28,337.15 and 19,858.88

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Solution

The fourth proportional to 20,544.75, 28,337.15 and 19,858.88 is: 27,391.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.75 : 28,337.15 = 19,858.88 : x
  2. Step 2: Convert to fraction form
    20,544.75/28,337.15 = 19,858.88/x
  3. Step 3: Cross multiply
    20,544.75x = 28,337.15 × 19,858.88
  4. Step 4: Simplify right side
    20,544.75x = 562,743,820.41
  5. Step 5: Solve for x
    x = 562,743,820.41/20,544.75
  6. Step 6: Final answer
    x = 27,391.13

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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.