Home / 43,846.12-65,778.92-20,459.80

Finding the Fourth Proportional to 43,846.12, 65,778.92 and 20,459.80

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Solution

The fourth proportional to 43,846.12, 65,778.92 and 20,459.80 is: 30,694.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,846.12 : 65,778.92 = 20,459.80 : x
  2. Step 2: Convert to fraction form
    43,846.12/65,778.92 = 20,459.80/x
  3. Step 3: Cross multiply
    43,846.12x = 65,778.92 × 20,459.80
  4. Step 4: Simplify right side
    43,846.12x = 1,345,823,547.42
  5. Step 5: Solve for x
    x = 1,345,823,547.42/43,846.12
  6. Step 6: Final answer
    x = 30,694.24

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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.