Home / 43,660.48-65,503.68-20,300.80

Finding the Fourth Proportional to 43,660.48, 65,503.68 and 20,300.80

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Solution

The fourth proportional to 43,660.48, 65,503.68 and 20,300.80 is: 30,457.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,660.48 : 65,503.68 = 20,300.80 : x
  2. Step 2: Convert to fraction form
    43,660.48/65,503.68 = 20,300.80/x
  3. Step 3: Cross multiply
    43,660.48x = 65,503.68 × 20,300.80
  4. Step 4: Simplify right side
    43,660.48x = 1,329,777,106.94
  5. Step 5: Solve for x
    x = 1,329,777,106.94/43,660.48
  6. Step 6: Final answer
    x = 30,457.23

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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.