Home / 43,689.12-65,532.72-12,524.64

Finding the Fourth Proportional to 43,689.12, 65,532.72 and 12,524.64

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Solution

The fourth proportional to 43,689.12, 65,532.72 and 12,524.64 is: 18,786.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,689.12 : 65,532.72 = 12,524.64 : x
  2. Step 2: Convert to fraction form
    43,689.12/65,532.72 = 12,524.64/x
  3. Step 3: Cross multiply
    43,689.12x = 65,532.72 × 12,524.64
  4. Step 4: Simplify right side
    43,689.12x = 820,773,726.22
  5. Step 5: Solve for x
    x = 820,773,726.22/43,689.12
  6. Step 6: Final answer
    x = 18,786.68

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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.