Home / 43,534.78-65,280.30-20,177.62

Finding the Fourth Proportional to 43,534.78, 65,280.30 and 20,177.62

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Solution

The fourth proportional to 43,534.78, 65,280.30 and 20,177.62 is: 30,256.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,534.78 : 65,280.30 = 20,177.62 : x
  2. Step 2: Convert to fraction form
    43,534.78/65,280.30 = 20,177.62/x
  3. Step 3: Cross multiply
    43,534.78x = 65,280.30 × 20,177.62
  4. Step 4: Simplify right side
    43,534.78x = 1,317,200,848.02
  5. Step 5: Solve for x
    x = 1,317,200,848.02/43,534.78
  6. Step 6: Final answer
    x = 30,256.29

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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.