Home / 22,778.40-34,167.60-20,186.40

Finding the Fourth Proportional to 22,778.40, 34,167.60 and 20,186.40

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Solution

The fourth proportional to 22,778.40, 34,167.60 and 20,186.40 is: 30,279.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,778.40 : 34,167.60 = 20,186.40 : x
  2. Step 2: Convert to fraction form
    22,778.40/34,167.60 = 20,186.40/x
  3. Step 3: Cross multiply
    22,778.40x = 34,167.60 × 20,186.40
  4. Step 4: Simplify right side
    22,778.40x = 689,720,840.64
  5. Step 5: Solve for x
    x = 689,720,840.64/22,778.40
  6. Step 6: Final answer
    x = 30,279.60

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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.