Home / 43,515.64-65,291.82-18,561.16

Finding the Fourth Proportional to 43,515.64, 65,291.82 and 18,561.16

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Solution

The fourth proportional to 43,515.64, 65,291.82 and 18,561.16 is: 27,849.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,515.64 : 65,291.82 = 18,561.16 : x
  2. Step 2: Convert to fraction form
    43,515.64/65,291.82 = 18,561.16/x
  3. Step 3: Cross multiply
    43,515.64x = 65,291.82 × 18,561.16
  4. Step 4: Simplify right side
    43,515.64x = 1,211,891,917.71
  5. Step 5: Solve for x
    x = 1,211,891,917.71/43,515.64
  6. Step 6: Final answer
    x = 27,849.57

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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.