Home / 20,762.42-28,652.13-11,811.65

Finding the Fourth Proportional to 20,762.42, 28,652.13 and 11,811.65

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Solution

The fourth proportional to 20,762.42, 28,652.13 and 11,811.65 is: 16,300.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.42 : 28,652.13 = 11,811.65 : x
  2. Step 2: Convert to fraction form
    20,762.42/28,652.13 = 11,811.65/x
  3. Step 3: Cross multiply
    20,762.42x = 28,652.13 × 11,811.65
  4. Step 4: Simplify right side
    20,762.42x = 338,428,788.05
  5. Step 5: Solve for x
    x = 338,428,788.05/20,762.42
  6. Step 6: Final answer
    x = 16,300.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.