Home / 43,557.78-65,308.59-18,614.10

Finding the Fourth Proportional to 43,557.78, 65,308.59 and 18,614.10

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Solution

The fourth proportional to 43,557.78, 65,308.59 and 18,614.10 is: 27,909.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,557.78 : 65,308.59 = 18,614.10 : x
  2. Step 2: Convert to fraction form
    43,557.78/65,308.59 = 18,614.10/x
  3. Step 3: Cross multiply
    43,557.78x = 65,308.59 × 18,614.10
  4. Step 4: Simplify right side
    43,557.78x = 1,215,660,625.12
  5. Step 5: Solve for x
    x = 1,215,660,625.12/43,557.78
  6. Step 6: Final answer
    x = 27,909.15

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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.